Effect Of Gardenia Fruit Extract On Fermentation And Functional Properties Of Yogurt,
2020
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128 , China
Effect Of Gardenia Fruit Extract On Fermentation And Functional Properties Of Yogurt, Zhu Guang-Cheng, Qin Si, Nie Qian-Zhong
Food and Machinery
In order to explore the effect of adding gardenia fruit, a traditional Chinese medicine with dual function of food and medicine, on the quality of yogurt, ferrmentation characteristics and functional properties were investigated. The effects of GE on the number of live bacteria, acidity, water holding capacity and viscosity of yogurt during fermentation were evaluated, and the antibacterial activity, antioxidant activity, lactic acid bacteria's tolerance to simulated gastrointestinal fluid and volatilization were measured after the fermentation was completed. The results showed that the proper amount of GE could improve the antibacterial and antioxidant activity of yogurt, enhance the tolerance …
Preparation Of Wheat Gluten Protein Hydrolysates And Their Aqueous Intermediates For Maillard Reaction,
2020
Technology Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, Yunnan 650231 , China
Preparation Of Wheat Gluten Protein Hydrolysates And Their Aqueous Intermediates For Maillard Reaction, Lei Sheng, Wang Kai, Duan Yan-Qing, Li Yuan-Dong, Liu Xiu-Ming, Yu Jun-He, Cui He-Ping, Zhang Xiao-Ming, Yang Qian-Xu
Food and Machinery
The optimum precursor peptides were prepared for Maillard reaction by using enzymatic hydrolysis of wheat gluten proteins. Setting the degree of hydrolysis (DH) and protein dissolution rate as main indexes, the optimum parameters of enzymatic hydrolysis were optimized by partial least squares regression as follows: the concentration of complex protease Ⅰ (2 000 U/g), hydrolyzing with complex protease Ⅰ for 3 h, aminopeptidase concentration (400 U/g), hydrolyzing with aminopeptidase for 2 h, and water/substance ratio (1:12 g/g). The main components of the hydrolysates were small molecule peptides under the above hydrolysis conditions, and the proportion of free amino acids in …
Layer-By-Layer Self-Assembly Process Optimization And Storage Stability Of Multi-Layer Fish Oil Microcapsules,
2020
College of Food Science and Technology, Bohai University, Jinzhou, Liaoning 121013 , China ；National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liao
Layer-By-Layer Self-Assembly Process Optimization And Storage Stability Of Multi-Layer Fish Oil Microcapsules, Chen Jing-Xin, Jiang Qi, Mi Hong-Bo, Li Jian-Rong, Ma Yong-Jun
Food and Machinery
Fish bone gelatin and fucoidan was used as the wall materials and multilayer fish oil emulsion was prepared by layer by layer self-assembly technology. Multilayer fish oil microcapsules were prepared by spray drying method and the storage stability was studied. According to the changes of Zeta potential, the optimum concentration of wall materials for multilayer emulsion was determined. On the basis of orthogonal experiment, the maximum microencapsulation efficiency of 82.03% was obtained when multi-layer fish oil microcapsules were prepared using the following optimum conditions: ultrasonic time 10 min, ultrasonic temperature 25 ℃, homogenization time 4 min, homogenization rate 5 000 …
Preparation Of Solid Drink With Kefir Fermented Compound Fruits And Vegetables And Its Functions In Vitro,
2020
College of Life Science, Shanxi University, Taiyuan, Shanxi 030006 , China
Preparation Of Solid Drink With Kefir Fermented Compound Fruits And Vegetables And Its Functions In Vitro, Chen Shu-Jun, Luo Jia
Food and Machinery
Taking the compound fruits and vegetables with Kefir fermented apple pulp-ketchup-sea buckthorn juice, by adding the right amount of inulin, fructooligosaccharides and chlorophyll, a leisure health solid drink was made by freeze-drying in vacuum. With the viable count of Lactobacillus and yeast as indicators, single factor and response surface tests were used to optimize fermentation process. Fermented freeze-dried solid drink were made to different concentration gradients, using unfermented freeze-dried samples as a control, and samples were used to analyze and determine the capacity of hypoglycemic, lipid-lowering and antioxidant in vitro. The results showed that the optimal fermentation conditions were: fermentation …
Effects Of Sports Drinks And Oral Rehydration Salts On The Metabolism Of Rats In High Temperature Environment,
2020
Changsha Social Work College, Changsha, Hunan 410004 , China
Effects Of Sports Drinks And Oral Rehydration Salts On The Metabolism Of Rats In High Temperature Environment, Li Ming
Food and Machinery
The effects of oral rehydration solutions (ORS) and sports drink solutions (SDS) on the hydration and metabolism of experimental rats during high temperature exercise were compared. The results showed that the hemoglobin level of the two groups increased significantly, and the sweating rate and dehydration rate had no significant difference. In the two treated groups, the change of plasma volume was significant difference, and the blood glucose content was significantly higher than that of the control group. After exercise, the fat oxidation in SDS was lower than that in ors. However, no difference was found between groups of ORS and …
A Comparative Study On The Hydration Ability Of Three Commercial Sports Drinks On Experimental Rats,
2020
Faculty of Automotive Engineering, Xinjiang Vocational & Technical College of Communications, Urumqi, Xinjiang 831401 , China
A Comparative Study On The Hydration Ability Of Three Commercial Sports Drinks On Experimental Rats, A-Bu-Li-Mi-Ti Ha-Si-Mu
Food and Machinery
In this study, using the deuterium dilution technique, the hydration abilities of three kinds of sports drinks commercially available and drinking water (control group) under rest and exercise conditions were compared. The results showed that significant differences were found, in the rest state, including the time points as the absorption rate of the three beverages reached the maximum value, 50% of the maximum absorption rate, and the maximum absorption amount. However, no significant difference was found in the time when the absorption rate was 0. In the exercise status, a significant difference between the time when the absorption rate of …
The Effect On Processing Quality Of Different Parts Of Tobacco Under Different Drying Airflow Temperatures,
2020
Technology Center of China Tobacco Fujian Industrial Co., Ltd., Xiamen, Fujian 361021 , China
The Effect On Processing Quality Of Different Parts Of Tobacco Under Different Drying Airflow Temperatures, Zeng Qiang, Chang Ming-Bin, Que Wen-Hao, Wang Rui-Liang, Wang Dao-Quan, Li Jin-Lan
Food and Machinery
Based on the materials of upper, middle and lower tobacco leaves planted in Yunnan and Henan Province, the changes in physical indexes, chemical components, and sensory quality under the conditions of 150~190 ℃ airflow temperatures of pneumatic drying were studied. The results showed that: ① at the higher airflow temperature, the Yunnan tobacco had better processing resistance and crush resistance; ② different airflow temperatures changed the flavor, the quality of aroma, mixed gas, irritancy, dryness and cleanness of the taste. The quality of aroma, mixed gas and delicate degree generally improved during 150~160 ℃ airflow temperature range, but the airflow …
Research Progress In Detection Of Estrogen Residues In Food By Biological Probes Based On Specific Molecular Recognition,
2020
College of Food Science, Southwest University, Chongqing 400715 , China ；National Food Science andEngineering Experimental Teaching Demonstration Center, Southwest University, Chongqing 400715 , China
Research Progress In Detection Of Estrogen Residues In Food By Biological Probes Based On Specific Molecular Recognition, Chen Ting-Ting, Wang Xin, Tao Xiao-Qi
Food and Machinery
In this study, the main detection methods based on specific molecular recognition of biological probes in recent years are reviewed, including enzyme-linked immunosorbent assay, lateral flow immunoassay and electrochemical biosensor. The advantages and disadvantages of each method are analyzed.
Analysis Of Components And Functionality Of Fruit Wine,
2020
Institute of Pomology, Shanxi Academy of Agricultural Sciences, Taiyuan, Shanxi 030031 , China ；Shanxi Key Laboratory of Germplasm Improvement and Utilization in Pomology, Taiyuan,Shanxi 030031 , China
Analysis Of Components And Functionality Of Fruit Wine, Zhang Qian-Ru, Yin Long-Long, Yin Rong, Wang Xian-Ping, Liang Zhi-Hong
Food and Machinery
This main components and functions of various types of fruit wines were analyzed. The clarification of the nutritional components was elaborated, which helped to find the nutritional and healthy selling points of fruit wine and its precision marketing concepts. This would strengthen the brand building of Chinese fruit wine enterprises in the future.
Research Progress On Extraction And Bioactivity Of Melanin From Marine Cephalopod Ink,
2020
College of Mairine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, Shandong 266042 , China
Research Progress On Extraction And Bioactivity Of Melanin From Marine Cephalopod Ink, Xie Jing-Wen, Yang Xi-Hong, Che Hong-Xia, Zhang Jing-Yu, Yu Dong-Xing, Xie Wan-Cui
Food and Machinery
Based on molecular structure and physical and chemical properties, we compare the characteristics of melanin separation and purification by different methods, and summarizes the antioxidation, immunomodulation, radiation protection, antiviral, chelated metal ions, antitumor, organ protection, anti-inflammatory and antibacterial properties of melanin. Biological activities, such as DNA protection, focus on the characteristics and mechanisms of antioxidant, metal chelation, anti-tumor, and radiation protection, and provide guidance for the higher value utilization of melanin.
Preparation And Anti-Allergic Effect Inhibition In Vitro Of Cashew Oligopeptide,
2020
School of Food Science and Technology, Hainan University, Haikou, Hainan 570228 , China
Preparation And Anti-Allergic Effect Inhibition In Vitro Of Cashew Oligopeptide, Chen Di, Jiang Ke, Zhou Xin, Cao Xian-Ying
Food and Machinery
The proteases such as alkaline protease, neutral protease, papain, bromelain, and complex protease were screened using the degree of hydrolysis (DH) and peptide yield (TCA-YSP) as indicators. The crude oligopeptide of cashew nut was isolated by ultrafiltration, Sephadex-G15, Sephadex-G50 and semi-preparative liquid chromatography. The purity and structure of cashew nut oligopeptide were identified through analytical liquid chromatography and infrared spectra. The results showed that DH and TCA-YSP were (17.06±1.52)% and (26.28±0.13)% respectively, which were significantly higher than those of other proteases. Therefore, alkaline protease was the most suitable protease. The sequence of cashew nut oligopeptide was Ile-Ile-Ala-Pro-Ala-Val-Ala-His (IIAIPAGVAH). The result …
Anti-Inflammatory Effect And Molecular Mechanism Of Durian Hull Polyphenols On Lps-Induced Raw 264.7 Macrophages,
2020
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 333047 ,China
Anti-Inflammatory Effect And Molecular Mechanism Of Durian Hull Polyphenols On Lps-Induced Raw 264.7 Macrophages, Liu Wen-Qiang, Zhang Yi-Ling, Xiong Hua, Zhu Xue-Mei, Sun Yong
Food and Machinery
In this study, polyphenols from Durian hull were extracted by 80% methanol, and their antioxidant and anti-inflammatory activities were investigated based on in vitro antioxidant assays and LPS-stimulated RAW 264.7 cells model. The results demonstrated that durian hull extract was rich in polyphenols, it showed strong antioxidant activity in vitro and it could reduce the expression level of inducible nitricoxide synthase (iNOS) and cyclooxygenase-2 (COX-2), decrease the NO production, and also lower the pro-inflammatory cytokines (TNF-α, IL-1β and IL-6) at the mRNA and protein levels. At the same time, it can inhibit the phosphorylation of IκB and p65 proteins related …
Effects Of Freeze-Thaw Pretreatment On The Characteristics Of Hot-Air Drying In Malus Domeri (Bois) Chev.,
2020
College of Food and Biological Engineer, Hezhou University, Hezhou, Guangxi 542899 , China ；Institute of Food Science and Engineering Technology, Hezhou University, Hezhou, Guangxi 542899 , China
Effects Of Freeze-Thaw Pretreatment On The Characteristics Of Hot-Air Drying In Malus Domeri (Bois) Chev., Guo Ting, Wu Yan, Chen Yi-Neng, Duan Zhen-Hua, Chen Zhen-Lin, Cai Wen, Deng Chun-Li
Food and Machinery
The effects of freeze-thaw processing on the characteristics of hot-air drying and the coefficients of moisture diffusion in Malus domeri (Bois) chev were investigated. The results showed that the freeze-thaw pre-treatments had significant effects on drying characteristics. It was found that freeze-thaw pre-treatments could significantly shorten the drying period and increasing the drying rate. Logarithmic model provided better simulation of drying curves for freeze-thaw M. domeri (Bois) chev. at different drying conditions. The results indicated that Deff increased with the increasing of times of freeze-thaw.
Design Of A Adding Liquid Instrument Control System For Sample Pretreatment,
2020
School of Mechanical Engineering, Hubei University of Technology, Wuhan, Hubei 430068 , China ；Hubei Key Lab of Modern Manufacture Quality Engineering, Wuhan, Hubei 430068 , China
Design Of A Adding Liquid Instrument Control System For Sample Pretreatment, Wang Zheng-Jia, Lv Zhao-Xiong, Zhai Zhong-Sheng, Zhao Hai-Tao, He Jia-Qi, Wang Chao
Food and Machinery
When manual testing food and chemical samples, there are problems such as large pretreatment errors and low efficiency. In order to solve those problems, a adding liquid instrument control system for sample pretreatment was designed. The system adopts PLC as the main controller, and the software and hardware of the system were designed according to the control demand analysis of the pretreatment instruments. Combined the characteristics of the S-type acceleration and deceleration algorithm and non-contact liquid addition method. By controlling the acceleration of the deceleration phase during the liquid addition process for the droplet hanging on the tip falling off …
Effects Of Preservatives Combined With Low-Voltage Lectrostatic Field On The Storage Quality Of Prunus Armeniaca L. And The Analysis Of Its Relative Correlation,
2020
Ningxia Key Laboratory of Food Microbial Application Technology and Safety Control, Yinchuan, Ningxia, 750021 , China ；School of Agriculture, Ningxia University, Yinchuan, Ningxia, 750021 , China
Effects Of Preservatives Combined With Low-Voltage Lectrostatic Field On The Storage Quality Of Prunus Armeniaca L. And The Analysis Of Its Relative Correlation, Yang Ya-Li, Liu Hui-Yan, Yang Wen-Li, Zhang Hao-Yu, Jiang Chang, Fang Hai-Tian, Zhang Guang-Di
Food and Machinery
Red plum apricot was used as the test material, and 0.5 μL/L of 1-MCP drip irrigation fumigation was used in combination with 3 different sustained release rates (1/2 tablets, 1 tablet and 2 tablets were py1, py2, and py3 treatment groups, respectively. ) SO2 preservative treated red plum apricot and stored at low temperature (0.0±0.8) ℃ low voltage (200 mV) electrostatic field (LVEF). The results showed that all three treatments could effectively improve the postharvest storage quality of red plum apricot and reduce the degree of cold damage. During the entire storage period, the browning index of the py3 …
Changes In Microbiota Community Structure And Antioxidant Activity Of Polyphenols From Litchi Pericarp During Degradation With Human Fecal Microbiota In Vitro,
2020
College of Food Science and Engineering, Hainan University, Haikou, Hainan 570228 , China ；Key Laboratory of Food Quality and Safety of Guangdong Province, Guangzhou, Guangdong 510642 , China
Changes In Microbiota Community Structure And Antioxidant Activity Of Polyphenols From Litchi Pericarp During Degradation With Human Fecal Microbiota In Vitro, Huang Xiao-Xia, Li Xiao-Le, Li Wu, Yang Rui-Li
Food and Machinery
To reveal the changes in microbiota community structure and antioxidant activity of polyphenols from litchi pericarp during culture with human fecal microbiota, litchi pericarp polyphenols were added into the mixed medium of intestinal microbiota solution prepared from fresh feces of healthy volunteers for the anaerobic culture in vitro. The total phenol content and antioxidant activities were measured at 0, 4, 8, 12, 24 and 48 h. The change of intestinal microbiota was analyzed by high-throughput sequencing. The results showed that the total phenol content significantly decreased within 0~48 h and the antioxidant activity was also reduced but did not attain …
Effects Of Different Processing Parameters On The Color Protecting Of Candied Apple,
2020
School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000 , China
Effects Of Different Processing Parameters On The Color Protecting Of Candied Apple, Li Feng-Xia, Lei Qing-Yu, Sheng Hong-Ye, Huang Yu-Xin, Zhang Jiao-Jiao, Hu Yuan-Qing, Chen Ting-Yan
Food and Machinery
The effects of color protection to candied apple under different processing parameters were studied by using Shangdong red Fuji as raw material. Sensory evaluation and brightness (L value) and browning degree were used as evaluation indexes, and the effects of slice thickness, phytic acid concentration, microwave blanching power, microwave blanching time, hot air drying temperature and drying time on the color protection effect of candied apple were analyzed by single factor experiment. Moreover, the storage of phytic acid and other color-protecting agents were compared in order to obtain the best conditions for candied apple color protection. The results showed that …
Inspecting Species And Freshness Of Fish Fillets Using Multimode Hyperspectral Imaging Techniques,
2020
USDA/ARS Environmental Microbial and Food Safety Laboratory
Inspecting Species And Freshness Of Fish Fillets Using Multimode Hyperspectral Imaging Techniques, Jianwei Qin, Fartash Vasefi, Rosalee S. Hellberg, Alireza Akhbardeh, Rachel B. Isaacs, Ayse Gamze Yilmaz, Chansong Hwang, Insuck Baek, Walter F. Schmidt, Moon S. Kim
Food Science Faculty Articles and Research
This study developed multimode hyperspectral imaging techniques to detect substitution and mislabeling of fish fillets. Line-scan hyperspectral images were collected from fish fillets in four modes, including reflectance in visible and nearinfrared (VNIR) region, fluorescence by 365 nm UV excitation, reflectance in short-wave infrared (SWIR) region, and Raman by 785 nm laser excitation. Fish fillets of six species (i.e., red snapper, vermilion snapper, Malabar snapper, summer flounder, white bass, and tilapia) were used for species differentiation and frozen-thawed red snapper fillets were used for freshness evaluation. A total of 24 machine learning classifiers were used for fish species and freshness …
Edible Films Made Of Corn Zein Protein And Cellulose Derivatives,
2020
University of Nebraska-Lincoln
Edible Films Made Of Corn Zein Protein And Cellulose Derivatives, Gloria Dukuzeyesu, Changmou Xu, Zhang Yue
UCARE: Research Products
A composite edible film made of corn zein protein (Z) and cellulose derivatives (C) was successfully fabricated. Edible films are coatings used to wrap food products to protect them against microbial deterioration, loss of moisture, and to extend the shelf life of the product. These edible films are consumed together with the product . The mechanical properties, water vapor permeability, application on fruits, and shelf life of the composite film were studied. Zein demonstrated excellent packing characteristics; due to its high no polar contents and hydrophobic nature, zein film served as a moisture barrier. Hydroproxy methylcellulose (HPM) is tasteless, odorless …
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch,
2020
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 , China ；Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian 350002 , China
Effect Of Monosaccharide On The Retrogradation Of Lotus Seed Starch, Chen Yue-Yu, Ou Yu-Jia, Zeng Hong-Liang, Zhang Yi, Zheng Bao-Dong
Food and Machinery
Effects of monosaccharide (glucose and fructose) on the retrogradation of lotus seed starch were studied from the aspects of crystal structure, molecular structure and molecular weight. The results of X-ray diffraction, nuclear magnetic resonance and infrared spectrum showed that glucose and fructose could inhibit the recrystallization of lotus seed starch. The crystallinity, double helix structure and short-range ordered structure decreased, and the proportion of amorphous area increased in the composite system, indicating that glucose and fructose might inhibit the retrogradation of starch. The inhibition of glucose on starch retrogradation was more significant than fructose, which might be related to the …
