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Full-Text Articles in Food Processing
Inhibitory Effect Of Tbhq On The Deterioration Of Leisure Dried Tofu, Chen Durun, Huang Zhanrui, Hu Lianhua, Chen Hao, Zhao Dan
Inhibitory Effect Of Tbhq On The Deterioration Of Leisure Dried Tofu, Chen Durun, Huang Zhanrui, Hu Lianhua, Chen Hao, Zhao Dan
Food and Machinery
[Objective] To address key industrial challenges of leisure dried tofu subjected to mild sterilization, namely shortened shelf life (30~90 d) and susceptibility to photoenzyme -induced oxidative deterioration, this study aimed to elucidate the mechanisms by which tert -butylhydroquinone (TBHQ ) inhibits quality deterioration in leisure dried tofu induced by photoenzyme initiators. [Methods] Leisure dried tofu was prepared using marinade treated with TBHQ and photoenzyme initiators (chlorophyll and azodiisobutyronitrile ). During a 90 d storage period, dynamic changes in nutritional components, characteristic oxidation indices, textural properties, intermolecular forces, and microstructure of the dried tofu were systematically monitored.［Results］ During the early storage …
Migration Volume Determination And Migration Patterns Of 11 Antioxidants From Degradable Polylactic Acid Straws, Luo Minting, Wu Zhihang, Hu Tengxin, Xu Qingpeng
Migration Volume Determination And Migration Patterns Of 11 Antioxidants From Degradable Polylactic Acid Straws, Luo Minting, Wu Zhihang, Hu Tengxin, Xu Qingpeng
Food and Machinery
[Objective] To establish a method for authenticity identification of camellia seed oil. [Methods] The fatty acid composition of camellia seed oil and six common vegetable oils are determined by gas chromatography. Principal component analysis (PCA) is employed to explore the distribution patterns of fatty acids among the vegetable oils and to screen for potentially adulterated oils. Partial least squares discriminant analysis (PLS-DA) is applied to establish a model between fatty acid profiles and actual adulterated oils. Finally, multiple stepwise linear regression analysis is used to establish quantitative analysis models for adulteration in camellia seed oil. [Results] Among the six common …
Comparison And Optimization Of Glycoprotein Extraction Processes For Six Panax Medicinal Herbs Using Ultra-High Pressure Extraction Technology, Chang Fangyu, Zang Hao, Cheng Liye, Han Lusheng, Du Lianyun, Wang Enpeng
Comparison And Optimization Of Glycoprotein Extraction Processes For Six Panax Medicinal Herbs Using Ultra-High Pressure Extraction Technology, Chang Fangyu, Zang Hao, Cheng Liye, Han Lusheng, Du Lianyun, Wang Enpeng
Food and Machinery
[Objective] To comprehensively compare and screen glycoprotein preparation processes for six representative medicinal materials from the genus Panax. [Methods] Glycoprotein yield, DPPH radical scavenging capacity, hydroxyl radical scavenging capacity, and Fe2+ chelation inhibition rate were used as evaluation indicators. Glycoprotein extraction rates and antioxidant activities of six medicinal materials, including P. ginseng, P. notoginseng, P. quinquefolius, P. japonicus (T. Nees) C. A. Mey., P. stipuleanatus H. T. Tsai & K. M. Feng, and P. bipinnatifidus Seem, were compared using traditional thermal extraction and ultra-high pressure processing (UHPP). The Box–Behnken response surface method was employed to optimize UHPP parameters for P. …
Extraction Process Optimization Of Camellia Sinensis Flavonoids And Their Antioxidant Activity, Tu Jianqiu, Xu Danhe, Chen Long, Wang Yaxin, Xu Jiahui, Jing Lixiang, Li Jianfang
Extraction Process Optimization Of Camellia Sinensis Flavonoids And Their Antioxidant Activity, Tu Jianqiu, Xu Danhe, Chen Long, Wang Yaxin, Xu Jiahui, Jing Lixiang, Li Jianfang
Food and Machinery
[Objective] To optimize the extraction process of flavonoids from Xinyang Camellia sinensis and to compare the in vitro antioxidant activities of total flavonoids before and after purification. [Methods] Using Xinyang C. sinensis as raw material, a one-factor test is conducted to investigate the effects of ethanol volume fraction, ultrasonic time, ultrasonic power, and material–liquid ratio on the yield of flavonoids. Subsequently, a three-factor, three-level optimization model is established based on the Box–Behnken experimental design. Additionally, a macroporous adsorption resin is utilized for the purification of flavonoid crude extracts. Finally, the in vitro antioxidant activity of the total flavonoids is evaluated …
The Effect Of Ellagic Acid Isolated From Maclura Pomifera Fruit On The Staling Dynamics During The Storage Of Bread Products, Suvonqul S. Ravshanov, Anvar M. Normatov, Sarvinoz B. Nazarova, Sirojiddin Kh. Sadullayev, GuliraʼNo S. Bosimova
The Effect Of Ellagic Acid Isolated From Maclura Pomifera Fruit On The Staling Dynamics During The Storage Of Bread Products, Suvonqul S. Ravshanov, Anvar M. Normatov, Sarvinoz B. Nazarova, Sirojiddin Kh. Sadullayev, GuliraʼNo S. Bosimova
CHEMISTRY AND CHEMICAL ENGINEERING
This article investigates the effect of ellagic acid isolated from Maclura pomifera fruit on the staling dynamics during the storage of bread products. The study aimed to determine the effectiveness of ellagic acid's antioxidant and antimicrobial properties in preserving the microbiological stability and technological quality of bread. Experiments were conducted on bread samples with ellagic acid added at concentrations of 0.05% and other levels. The results showed a slowdown in the staling process, as indicated by moisture content, water retention, shrinkage, and penetrometric measurements. Specifically, at a concentration of 0.05%, ellagic acid helped to maintain the softness and elasticity of …
Antioxidant And Anti-Fatigue Properties Of Malus Spectabilis Fruit Polysaccharides In Mice, Zhilin Wen, Ming Li
Antioxidant And Anti-Fatigue Properties Of Malus Spectabilis Fruit Polysaccharides In Mice, Zhilin Wen, Ming Li
Journal of Food Science and Biotechnology
[Objective ] This study aimed to explore the antioxidant and anti-fatigue properties of Malus spectabilis fruit polysaccharides (MPPs ) and analyze the structure-activity relationships.[Method ] Two types of MPPs were prepared via acidic (AC-MPC ) and alkaline (AL-MPC ) extraction methods.The polysaccharide composition was identified by high-performance anion-exchange chromatography (HPAEC ).The changes in mouse body mass,serum biochemical indicators,and exhaustive swimming time were measured to assess the in vivo antioxidant and anti-fatigue effects of MPPs.[Result ] Galacturonic acid was the main component in both types of MMPs,while AL-MPC had higher mass fraction of total polysaccharides.The in vivo experiments demonstrated that both …
Fabrication And Antioxidant Property Characterization Of Caffeic Acid Phenethyl Ester-Loaded Nanoparticles, Yaqiong Chen, Yumeng Li, Hui Wu, Hongdong Song, Xiao Guan
Fabrication And Antioxidant Property Characterization Of Caffeic Acid Phenethyl Ester-Loaded Nanoparticles, Yaqiong Chen, Yumeng Li, Hui Wu, Hongdong Song, Xiao Guan
Journal of Food Science and Biotechnology
[Objective ] This study aims to improve the dispersion and utilization of caffeic acid phenethyl ester (CAPE ) in aqueous solutions.[Method ] CAPE-loaded hordein (CAPE-HD ) nanoparticles were constructed via an anti-solvent precipitation method.The physicochemical properties of the nanoparticles were characterized,and the antioxidant properties of the nanoparticles within Caco- 2 cells were investigated.[Result ] The components within the CAPE-HD nanoparticles interacted through non-covalent bonds,such as hydrogen bonding,resulting in an altered state of CAPE upon nanoparticle formation.The CAPE-HD nanoparticles exhibited near-spherical morphology with an average particle size of 193.93 nm,an average polydispersity index (PDI) of 0.26,and average Zeta potential of 14.50 …
Effects And Differences Of (+)-Catechin And (-)-Epicatechin On Antioxidant Activity Of Hek 293t Cells, Chang Sun, Ning Xia, Chao Wang, Fengxian Qin, Chengyu Lyu, Jian Liu, Tiezhu Li
Effects And Differences Of (+)-Catechin And (-)-Epicatechin On Antioxidant Activity Of Hek 293t Cells, Chang Sun, Ning Xia, Chao Wang, Fengxian Qin, Chengyu Lyu, Jian Liu, Tiezhu Li
Journal of Food Science and Biotechnology
[Objective ] This study aims to investigate the effects and differences of the natural antioxidant (+)-catechin and its isomer (-)-epicatechin on the antioxidant activity of HEK 293T cells based on the nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE ) pathway.[Method ] The effects of (+)-catechin and (-)-epicatechin on the viability of HEK 293T cells were investigated via the methyl thiazolyl tetrazolium (MTT ) assay.Reporter genes were employed to investigate the regulatory effects on the activation of ARE.The effects of (+)-catechin and (-)-epicatechin on the mRNA and proteins levels of the downstream factors [glutamate-cysteine ligase modifier subunit (GCLM …
Extraction Process Optimization And Antioxidant And Blood Glucose-Lowering Effect Evaluation Of Polyphenols From Camellia Japonica Flowers, Long Chen, Xiaocong Yang, Shujie Xing, Xinyao Shi, Xueke Zheng, Jing Zhu
Extraction Process Optimization And Antioxidant And Blood Glucose-Lowering Effect Evaluation Of Polyphenols From Camellia Japonica Flowers, Long Chen, Xiaocong Yang, Shujie Xing, Xinyao Shi, Xueke Zheng, Jing Zhu
Journal of Food Science and Biotechnology
[Objective ] This study optimized the extraction process of polyphenols from Camellia japonica (C.japonica ) flowers and preliminarily explored the antioxidant and blood glucose-lowering effects of the extracted polyphenols,aiming to improve the utilization of C.japonica flowers.[Method ] With the flowers of Xinyang Maojian as raw materials,the ultrasonic-assisted method was adopted to extract polyphenols from C.japonica flowers,and the antioxidant and blood glucose-lowering activities of the extracted polyphenols were analyzed.With the extraction rate of polyphenols from C.japonica flowers as the evaluation index,the response surface methodology was adopted to explore the effects of ethanol volume fraction,solid-liquid ratio,extraction time,and ultrasonic power on the extraction …
Construction , Structural Characterization , And Antioxidant Activity Evaluation Of Yam Polysaccharide-Selenium Nanoparticle Complexes, Yidong Xiao, Lanmei Ou, Mengmeng Zhao
Construction , Structural Characterization , And Antioxidant Activity Evaluation Of Yam Polysaccharide-Selenium Nanoparticle Complexes, Yidong Xiao, Lanmei Ou, Mengmeng Zhao
Journal of Food Science and Biotechnology
[Objective ] This study explored the structural characteristics and in vitro antioxidant activity of yam polysaccharide-selenium nanoparticle (YP-SeNPs ) complexes.[Method ] Yam polysaccharide (YP) were obtained through hot water extraction and then purified by purification,diethylaminoethyl cellulose 52 (DEAE-52) column chromatography,and dialysis.With YP as a template,YP-SeNPs were prepared with different Se/YP mass ratios (1∶3,1∶1,and 4∶3) in an oxidation-reduction system comprising ascorbic acid (VC) and sodium selenite (Na 2SeO 3）.The complexes were characterized via multiple techniques,including visual observation of solution color,ultraviolet-visible absorption (UV-vis ) spectroscopy,particle size measurement,transmission electron microscopy (TEM ),scanning electron microscopy (SEM ),atomic force microscopy (AFM ),Fourier-transform infrared spectroscopy (FT-IR …
Nutritional Evaluation And Enzymatic Hydrolysis Peptide Preparation Process Optimization Of Aspongopus, Li Jiaxu, Yang Yang, Wang Biying, Li Pan, Du Bing
Nutritional Evaluation And Enzymatic Hydrolysis Peptide Preparation Process Optimization Of Aspongopus, Li Jiaxu, Yang Yang, Wang Biying, Li Pan, Du Bing
Food and Machinery
Objective: This study aimed to investigate the nutrient composition and the optimal enzymatic conditions for the peptides of Aspongopus and lay the groundwork for the creation of Aspongopus protein resources. Methods: The fat, protein, crude polysaccharide content, and fatty acid composition were determined according to the national standard method, and the total flavonoid and polyphenol content was determined by the standard curve method. Response surface methodology was used to optimize the enzymatic process conditions of Aspongopus based on the peptide yield; Amino acid analyzer and high-performance gel permeation chromatography was used to determine the amino acid composition and the relative …
Structural Characteristics And Hypoglycemic Activity Of Polysaccharides From Different Parts Of Wampee, He Junye, Liu Cheng, Yu Chongyang, Sun Pengpeng, Ren Yuanyuan
Structural Characteristics And Hypoglycemic Activity Of Polysaccharides From Different Parts Of Wampee, He Junye, Liu Cheng, Yu Chongyang, Sun Pengpeng, Ren Yuanyuan
Food and Machinery
Objective: This study aimed to develop antioxidant products and anti-diabetes drugs of wampee. The study aimed to research the structural characteristics, anti-oxidation and hypoglycemic properties in vitro of polysaccharides from different parts of wampee. Methods: The structural properties, in vitro antioxidant and hypoglycemic activities of polysaccharides from the fruit, peel and seeds of wampee (CWP-F, CWP-P, and CWP-S) were analyzed and compared from the aspects of chemical composition, molecular weight, monosaccharide composition, appearance, DPPH free radical scavenging rate and α-amylase inhibition rate. Results: CWP-F had the highest molecular weight and was mainly composed of galactose and arabinose, CWP-P was mainly …
Advances In Biological Activities Of Rape Bee Pollen And Its Development And Utilization, Yan Wenrui, Ji Le, Hu Yingjun, Chen Simin, Zheng Hongxing, Qi Shanshan
Advances In Biological Activities Of Rape Bee Pollen And Its Development And Utilization, Yan Wenrui, Ji Le, Hu Yingjun, Chen Simin, Zheng Hongxing, Qi Shanshan
Food and Machinery
The research and development value of rape bee pollen, a natural health raw material, is increasing as public awareness of health issues develops. This review introduced the various nutrients and active substances contained in rape bee pollen and summarized the biological activities and pharmacological effects of rape bee pollen in antioxidant, anti-inflammatory, immune enhancement, antibacterial, prostate protection, anti-diabetic complications, anti-tumor, intestinal regulation, and ovarian protection. The application of rapeseed bee pollen in bee products, health care products, food, medicine and cosmetics was discussed. The development direction of rapeseed bee pollen was prospected.
Changes Of Chemical Components Of Tibetan Tea During Pile Fermentation Process, Deng Junlin, He Yanghang, Chen Jian, Liu Gang, Xia Chen
Changes Of Chemical Components Of Tibetan Tea During Pile Fermentation Process, Deng Junlin, He Yanghang, Chen Jian, Liu Gang, Xia Chen
Food and Machinery
Objective: The changes in the main chemical components in water extracts of Tibetan tea during the pile fermentation process were investigated. Methods: Research was done on tea samples and water extracts from various fermentation stages of Tibetan tea. Soluble solids, soluble sugars, total polyphenols, total flavonoids, and in vitro antioxidant activity (ABTS and DPPH) were all examined. Additionally, ultra-performance liquid chromatography (UPLC) was used to find theophylline, caffeine, gallic acid (GA), and 8 catechins monomers. By using enzyme-linked immunoassay, the amount of theaflavin, thearubigin, and theabrownin were determined. Results: The soluble solids in Tibetan tea reduced and then slightly increased …
Study On Properties Of Polyvinyl Alcohol/Nanocellulose/Pomegranate Peel Polyphenol Composite Antibacterial Films, Li Hui, Tian Jia-Yao, Pang Shan-Shan, Gong Guo-Li
Study On Properties Of Polyvinyl Alcohol/Nanocellulose/Pomegranate Peel Polyphenol Composite Antibacterial Films, Li Hui, Tian Jia-Yao, Pang Shan-Shan, Gong Guo-Li
Food and Machinery
Objective: This study aimed to develop a kind of green antibacterial and antioxidant food packaging film. Methods: Polyvinyl alcohol/nanocellulose crystal/pomegranate peel polyphenol composite antibacterial films were prepared by blending method with pomegranate peel polyphenol as functional active substance, and their properties were characterized. Results: The continuity of the film surface was affected by the addition of pomegranate peel polyphenols. When the addition of polyphenols in pomegranate peel was 5 times the minimum bacteriostatic concentration, the water permeability of the film increased by 28.79%, and the tensile strength, elongation at break, hydrophobicity and light transmittance decreased by 44.97%, 29.37%, 36.36% and …
Preparation Of Antioxidant Hydrolysate Of Agaricus Blazei Murill, Chen Zhuo-Juan, Ke Xiu-Xian, Huang Xiao
Preparation Of Antioxidant Hydrolysate Of Agaricus Blazei Murill, Chen Zhuo-Juan, Ke Xiu-Xian, Huang Xiao
Food and Machinery
Objective: This study aimed to investigate the technological conditions for the preparation of antioxidant hydrolysate of Agaricus blazei Murill and analyze the nutritional components of the hydrolysate. Methods: Papain, cellulase and pectinase were prepared in mpapain∶mcellulase∶mpectinase ratio of 3∶4∶4 to dissolve the fruiting bodies of A. blazei. Response surface test was used to optimize the enzymatic hydrolysis process of A. blazei. Results: The optimal conditions of compound enzyme hydrolysis were as follows: compound enzyme dosage 0.5%, pH 6.2, hydrolysis temperature 49 ℃, hydrolysis time 147 min. Under these conditions, when the concentration of A. blazei …
Effect Of Aqueous Extract With Areca Catechu Pedicle On Mycelial Quality And Antioxidant Activity Of Three Edible Fungi, Bao Yi-Hong, Lai Zhang-Fei, Ma Yin-Peng, Jia Yu-Tong, Pan Fei-Bing, Kuang Feng-Jiao
Effect Of Aqueous Extract With Areca Catechu Pedicle On Mycelial Quality And Antioxidant Activity Of Three Edible Fungi, Bao Yi-Hong, Lai Zhang-Fei, Ma Yin-Peng, Jia Yu-Tong, Pan Fei-Bing, Kuang Feng-Jiao
Food and Machinery
Objective: In order to reuse the Areca catechu by-product—A. catechu pedicle, and improve the quality of mycelium of edible fungi, the effect of the pedicle aqueous extract on the liquid fermentation of edible fungi was investigated. Methods: Pleurotus ostreatus, Pleurotus citrinopileatus Singer, and Flammulina velutiper were selected as the test strains, and the effects of the addition of A. catechu pedicle aqueous extract on the quality of mycelium and the activity of enzymes related to the growth and metabolism of the three strains were investigated, by using mycelial growth rate, biomass, mycelial active ingredients and antioxidant activity as indicators. Results: …
Study On Supercritical Co2 Extraction Process, Volatile Components And Antioxidant Activity Of Rose Oil From Dianhong Rose, Liu Jin-Yun, Chang Jian, Jiang Zhuo-Fang, Xu Chong-Jun, Cheng Wan, Wu Heng
Study On Supercritical Co2 Extraction Process, Volatile Components And Antioxidant Activity Of Rose Oil From Dianhong Rose, Liu Jin-Yun, Chang Jian, Jiang Zhuo-Fang, Xu Chong-Jun, Cheng Wan, Wu Heng
Food and Machinery
Objective: Comprehensive utilization of Dianhong rose resources to improve the added value of products. Methods: The single-factor experiment and response surface experiment were used to optimize the extraction process of supercritical CO2 with essential oil yield as the measurement index. The composition and relative content of different rose oils were analyzed by GC-MS. The components and relative contents of different rose oils were analyzed by GC-MS, and the antioxidant activities of different rose oils were evaluated. Results: The results showed that the optimal extraction parameters were as followed: particle size of 40 mesh, extraction pressure of 25.5 MPa, extraction …
Optimization On Fermentation Process Of High Antioxidant Activity Of Malus Doumeri Fruits Beverage, Tian-De Cheng, Qing-Tong Xie, Li-Jun You
Optimization On Fermentation Process Of High Antioxidant Activity Of Malus Doumeri Fruits Beverage, Tian-De Cheng, Qing-Tong Xie, Li-Jun You
Food and Machinery
The comprehensive evaluation model of antioxidant capacity of Malus doumeri fruits beverage was determined by principal component analysis. Based on the antioxidant capacity of fermented beverage of Malus doumeri fruits, the single factor test and the response surface methodology were used to find out optimal fermentation conditions. Results showed that the comprehensive antioxidant capacity of Malus doumeri fruits fermented beverage was F综合=1.214 2×(0.386 2F1+0.241 2F2+0.196 2F3). The optimal fermentation parameters of antioxidant fermented beverage of Malus doumeri fruits were: starting at pH 5.0, fermentation temperature 30 ℃, adding 20 g/100 mL of …
Study On Antioxidant Effect Of Flavonoids From Artemisia Argyi And Its Application In Preservation Of Fresh Grade Breast, Yu-Hua Yang, Yan Huang, Wei-Peng Zheng
Study On Antioxidant Effect Of Flavonoids From Artemisia Argyi And Its Application In Preservation Of Fresh Grade Breast, Yu-Hua Yang, Yan Huang, Wei-Peng Zheng
Food and Machinery
In this paper, the total reducing power, O ·, ·OH and DPPH· scavenging capacity of the flavonoids from Artemisia argyi were studied by ultrasonic assisted extraction and macroporous resin purification. The changes of pH values, TBARS, TVB-N, redness value, hydrogen sulfide and other physical and chemical indexes of fresh grade breast and its effects on sensory quality were investigated .The results showed that the purified flavonoids from Artemisia argyi had a strong total reduction power and a good linear relationship, with the good scavenging ability for O ·, ·OH, and DPPH·, and the scavenging ability has a certain dose-effect relationship …
Optimization Of Extraction Technology Of General Flavone From Yunnan Diaphragma Juglandis Fructus And Its Antioxidant Activities And Effects On Lipid-Changed L02 Hepatocytes, Feng Zhang, Ya-Ge Ma, Xi Zhang, Jing-Juan Yang, Sheng-Lan Zhao
Optimization Of Extraction Technology Of General Flavone From Yunnan Diaphragma Juglandis Fructus And Its Antioxidant Activities And Effects On Lipid-Changed L02 Hepatocytes, Feng Zhang, Ya-Ge Ma, Xi Zhang, Jing-Juan Yang, Sheng-Lan Zhao
Food and Machinery
The extraction process of the general flavonoids from Diaphragma juglandis Fructus (DJF) in Yunnan was optimized. and the ability of the general flavonoids extracts to scavenge hydrogen peroxide (H2O2), superoxide anion free radicals (O ·), hydroxyl free radicals (·OH) and DPPH free radicals (DPPH·) and the role of reducing fatty degeneration L02 liver intracellular total cholesterol (TC) and triglycerides (TG) were investigated. The results showed that the best extraction process for general flavonoids from Yunnan DJF was extraction with 55% ethanol at 80 ℃ for 80 min. Under the control of these conditions, the extraction yield …
Antioxidant And Α-Amylase Inhibitory Activities And Starch Hydrolysis Kinetics Of Kidney Bean By Simulating Digestion In Vitro, Shi Juan, Bao Hong-Hui, Zhang Pei, Zhang Ti-Pei, Zhou Rui
Antioxidant And Α-Amylase Inhibitory Activities And Starch Hydrolysis Kinetics Of Kidney Bean By Simulating Digestion In Vitro, Shi Juan, Bao Hong-Hui, Zhang Pei, Zhang Ti-Pei, Zhou Rui
Food and Machinery
Objective: To evaluate the physiological effects of whole kidney been food and develop functional resources of different color kidney beans. Methods: The contents of total polyphenols, flavonoids and acid polysaccharides, and antioxidant and α-amylase inhibitory activities of digestive solution and starch hydrolysis kinetics and glucose diffusion properties of three kidney bean were investigated through in vitro simulated gastrointestinal digestion. Results: The contents of total polyphenols, flavonoids and acid polysaccharides, and antioxidant and α-amylase inhibitory activities were black kidney bean＞red kidney bean＞white kidney bean (P＜0.05). The kinetic rate of first order reaction of starch hydrolysis, rapidly digestible starch …
Optimization Of Puffing Process Of Blueberry Residue Composite Indica Rice And Its Antioxidant Activity, Zhang Xinzhen, Yang Tao, Jiang Yiting, Ju Feilong, Gao Yang, Sun, Li Xueling, Liang Jin
Optimization Of Puffing Process Of Blueberry Residue Composite Indica Rice And Its Antioxidant Activity, Zhang Xinzhen, Yang Tao, Jiang Yiting, Ju Feilong, Gao Yang, Sun, Li Xueling, Liang Jin
Food and Machinery
Objective: This study aimed to research and develop puffed blueberry dregs indica rice and fruit snack food. Methods: Using indica rice flour and blueberry residue powder as raw materials, three experimental factors including moisture content, extrusion temperature and screw speed were selected, and the expansion degree, anthocyanin content and sensory score were taken as comprehensive indexes. The expansion process was optimized by single factor and orthogonal test, and the antioxidant activity of the expanded products was studied. Results: The optimum process parameters were as follows: the moisture content of the material was 16%, the temperature of the …
Antioxidant Properties Of Polysaccharides From Platycodon Grandiflorum And Its Hypoglycemic Effect On Type 2 Diabetic Rats, Zhao Kai-Di, Wang Qiu-Dan, Lin Chang-Qing
Antioxidant Properties Of Polysaccharides From Platycodon Grandiflorum And Its Hypoglycemic Effect On Type 2 Diabetic Rats, Zhao Kai-Di, Wang Qiu-Dan, Lin Chang-Qing
Food and Machinery
Objective: This study aimed to investigate the antioxidant activity of polysaccharides fromPlatycodon grandiflorumand its hypoglycemic effect on type 2 diabetic rats.Methods: Extraction and determination ofP. grandiflorum polysaccharide content and its ability to scavenge different free radicals The rats were fed with high-fat and high-sugar feed for 6 weeks. After 6 weeks, the rats were intraperitoneally injected with STZ (30 mg/kg·BW) to establish type 2 diabetes models (T2DM), which were divided into normal group, model group, andP. grandiflorum-polysaccharide high-dose group (400 mg/kg) and low-dose group (200 mg/kg), and positive group (metformin 200 mg/kg). The body weight and fasting blood glucose …
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum, Li Xiao-Jie, Guo Yi, Ma Qing, Wang Pu, Xiao Ping
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum, Li Xiao-Jie, Guo Yi, Ma Qing, Wang Pu, Xiao Ping
Food and Machinery
Objective: This study aimed to improve the technological conditions of antioxidant activity of pumpkin polysaccharide. Methods:The effects of temperature, pumpkin powder/distilled water ratio of solid to liquid, inoculation amount and shaking speed on the extraction rate of bio-transformed pumpkin polysaccharide were investigated, and the scavenging ability of pumpkin polysaccharide on DPPH free radical was studied. Results:The optimal conditions were inoculation amount 1% and solid-liquid ratio 1∶30 (g/mL), with shaking speed of 100 r/min at 37 ℃. Under the control of these conditions, the scavenging rate of DPPH free radical was (54.61±1.58)%. The in vitro antioxidant activity of the …
Optimization Of Extraction Process Of Polyphenols From Olive Leaves And Its Effect On Oxidative Stability Of Camellia Seed Oil, Shang Fang-Yuan, Pan Li, Gu Ke-Ren, Li Xue-Qin
Optimization Of Extraction Process Of Polyphenols From Olive Leaves And Its Effect On Oxidative Stability Of Camellia Seed Oil, Shang Fang-Yuan, Pan Li, Gu Ke-Ren, Li Xue-Qin
Food and Machinery
Objective: The application of olive leaf, a by-product of olive oil production, in food industry was studied. Methods: Taking the yield of olive leaf polyphenols as the evaluation index, on the basis of single factor experiment, the effects of water bath temperature, extraction time and solid-liquid ratio on the yield of polyphenols were analyzed by Box-Behnken response surface method, the effects of olive leaf polyphenols on the oxidative stability of camellia seed oil were studied with peroxide value and acid value as indexes. Results: The optimum extraction conditions of polyphenols from olive leaves by water bath were …
Study On Anti-Fatigue Activities Of Chick-Pea Oligopeptides, Jia Qian-Sheng, Liu Yuan-Yang, Li Dan
Study On Anti-Fatigue Activities Of Chick-Pea Oligopeptides, Jia Qian-Sheng, Liu Yuan-Yang, Li Dan
Food and Machinery
Objective:The purpose of this study was to explore the antioxidative activity in vitro experiments and the anti-fatigue activity of chickpea oligopeptides in mice. Methods:In this study, the antioxidant capacity of chickpea oligopeptide was detected by in vitro method, and the anti-fatigue capacity of chickpea oligopeptide was comprehensively evaluated by detecting physiological and biochemical indexes of mice. Results:The superoxide anion radical scavenging ability IC50of chickpea oligopeptide was 4.26 mg/mL, which was significantly higher than that of GSH positive control group (P＜0.05); The reducing power of chickpea oligopeptide was significantly higher than that of GSH positive control …
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value, Xia Rui, Zhong Geng, Li Tian, Yang Wang-Fu, Gao Yu-Ge
Study On Physicochemical Properties, Antioxidant And Relieve Hyperchlorhydria Of Alkaline Electrolyzed Water With Different Negative Orp Value, Xia Rui, Zhong Geng, Li Tian, Yang Wang-Fu, Gao Yu-Ge
Food and Machinery
Objective:Alkaline electrolyzed water (AEW) produced by drinking water electrolysis with three different negative REDOX potential values was used to study its physical and chemical properties, antioxidant and gastric acid relieving capacity.Methods:The pH value, oxidation-reduction potential (ORP), total dissolved solids (TDS) and mineral content of AEW were determined, and the free radical scavenging rate and anti-lipid peroxidation ability of AEW were studied by spectrophotometry. The acid capacity of different water samples in vitro was studied by artificial gastric model.Results:The negative ORP value of AEW is positively correlated with the pH value (P＜0.01). The scavenging …
Nutrition Components And Active Substance Content And Antioxidant And Antibacterial Activity Of Acer Tegmentosum Maxim Bark, Guo Yu-Yuan, Jin Tie-Yan, Zhang Zhi-Yong
Nutrition Components And Active Substance Content And Antioxidant And Antibacterial Activity Of Acer Tegmentosum Maxim Bark, Guo Yu-Yuan, Jin Tie-Yan, Zhang Zhi-Yong
Food and Machinery
Objective:This study aimed to enrich the source of natural antioxidants and antibacterial agents and explore the development potential of the biological activity of Aceraceae. Methods:The nutrition components ofAcer tegmentosum Maxim (AT) bark and the total phenols content and total flavonoid content of ethanol extract (ATEE) and water extract (ATWE) were measured, and the contents of salidroside and tyrosol were determined by HPLC. DPPH radical, ABTS cationic radical, hydroxyl radical scavenging ability and ferric reducing power of extracts were determined. The antibacterial activity was evaluated by measuring the minimal inhibitory concentration (MIC) againstStreptococcus mutans,Staphylococcus aureus andEscherichia coli. Results:The …
Purification Processing Of Pigment From Boletus Eduliswith Macroporous Resin And Its Antioxidant Capacity, Guo Lei, Zi Lu-Xi, Cui Qi, Zhou Yu, Qiu Hui-Ting, Kan Huan
Purification Processing Of Pigment From Boletus Eduliswith Macroporous Resin And Its Antioxidant Capacity, Guo Lei, Zi Lu-Xi, Cui Qi, Zhou Yu, Qiu Hui-Ting, Kan Huan
Food and Machinery
Objective:The aim of this work is to obtain the optimal purification process of pigment from Boletus edulis by macroporous resin, and study its antioxidant activity. Methods:Based on the static and dynamic test, the influence of resin type, sample concentration, pH, loading flow ratio, ethanol concentration and elution flow ratio on the adsorption and desorption activity of Boletus edulis pigment were investigated to determine the optimal purification conditions. Then the structure, the DPPH·, ABTS+· and ·OH scavenging activity of the Boletus edulis pigment purified was also evaluated. Results:AB-8 was the most suitable type of macroporous resin and the optimum …