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Articles 121 - 150 of 518
Full-Text Articles in Food Processing
Effects Of Guava Leaf Extract On The Quality And Antioxidant Capacity Of Sugar Free Bread, Liu Jinjin, Zhu Siming, Lu Huiling, Zheng Kaifan, Xu Jialu
Effects Of Guava Leaf Extract On The Quality And Antioxidant Capacity Of Sugar Free Bread, Liu Jinjin, Zhu Siming, Lu Huiling, Zheng Kaifan, Xu Jialu
Food and Machinery
Objective: In order to develop a sugar-free, antioxidant and low-cost bread. Methods: Guava leaf extract and neohesperidin dihydrochalcone were added as functional ingredients to the bread. The specific volume, texture, water retention and free radical scavenging capacity of bread were tested to analyze its quality and antioxidant capacity. Results: There was no obvious linear relationship between the additive amount of the guava leaf extract and the comprehensive quality of the bread, but the additive amount of guava extract was positively correlated with the total phenolic content, DPPH+ and hydroxyl radical scavenging of bread. When the additive amount …
Recent Studies On The Effect Of Ultrasonic Treatment On Food Allergens, Shu Erlian, Niu Bing, Chen Qin
Recent Studies On The Effect Of Ultrasonic Treatment On Food Allergens, Shu Erlian, Niu Bing, Chen Qin
Food and Machinery
Thisreview introduced the food allergens and their sensitization mechanism, and summarized the research progress of peanut, soybean, milk, shrimp, egg and kiwifruit allergens in ultrasound treatment. Moreover, the research direction of ultrasound treatment in reducing food sensitization was also prospected.
Interactions Between Food Polyphenols And Proteins And Their Effects On Protein Characteristics, Xu Mengting, Hao Yanbin, Qi Jianxun, Ding Baomiao, Chen Yonghao
Interactions Between Food Polyphenols And Proteins And Their Effects On Protein Characteristics, Xu Mengting, Hao Yanbin, Qi Jianxun, Ding Baomiao, Chen Yonghao
Food and Machinery
This paper summarizes the research progress on the types of interactions between proteins and polyphenols and their effects on protein characteristics, and prospects the future foods with the coexistence of polyphenols and proteins.
Research Status Of Modern Detection Technology In Automatic Liquor Picking Of Chinese Baijiu, Lin Hui, Zhang Suyi, Zhang Lian, Zhang Liqiang, Zheng Changning
Research Status Of Modern Detection Technology In Automatic Liquor Picking Of Chinese Baijiu, Lin Hui, Zhang Suyi, Zhang Lian, Zhang Liqiang, Zheng Changning
Food and Machinery
This paper mainly summarized the research status of relevant detection technology in automatic liquor picking since the industrial revolution in China, and prospected its research and application. At the same time, the related research results of influencing liquor quality were summarized.
Research Progress On Nutritional Characteristics And Biological Activity Of Bactrian Camel Milk, Zhang Min, Peng Xiaoyu, Gao Yu, Wang Jiaqi, Pan Lina
Research Progress On Nutritional Characteristics And Biological Activity Of Bactrian Camel Milk, Zhang Min, Peng Xiaoyu, Gao Yu, Wang Jiaqi, Pan Lina
Food and Machinery
In this paper, the composition of protein, amino acids, fatty acids, minerals, vitamins and other nutrients in bactrian camel milk was discussed, and the research progress of the biological activities of camel milk and its enzymolysis products such as hypoglycemic, antibacterial, antiviral and antioxidant activities was summarized.
Safety Assessment Of Novel Foods And Food Proteins, Niloofar Moghadam Maragheh
Safety Assessment Of Novel Foods And Food Proteins, Niloofar Moghadam Maragheh
Department of Food Science and Technology: Dissertations, Theses, and Student Research
The global food market needs to grow and supply food demand to feed the growing world population. Alternative food proteins, including novel sources of safe foods and ingredients, are the candidates that could provide more environmentally sustainable choices, animal welfare, and consumers health. Novel foods and food proteins must undergo premarket safety evaluations including allergenicity assessment to reduce the risk of cross-reactivity with known allergens and uncharacterized risk to food allergic individuals. This research addressed the safety assessment of some novel foods and food ingredients using the study of stability of proteins in pepsin and sequence identity analysis in the …
Identification Of Gut Microbiome Composition Responsible For Gas Production, Erasme Mutuyemungu
Identification Of Gut Microbiome Composition Responsible For Gas Production, Erasme Mutuyemungu
Department of Food Science and Technology: Dissertations, Theses, and Student Research
Gas production remains a significant barrier to increasing intake of dietary fiber-containing foods for many consumers. Therefore, this thesis is comprised of two studies focusing on the role of the gut microbiome in contributing to gas production during fermentation of dietary components. Previous studies have reported significant correlations between Megasphaera elsdenii and gas production during fermentation of pulses. Therefore, the objective of the first study was to determine the role of M. elsdenii in gas production by the microbiome during fermentation of foods commonly associated with gas production. Human fecal microbiomes were separated based on the presence (Me+) or absence …
Workspace Simulation And Trajectory Planning Of Food Handling Robot, Cai Guo-Qing, Hao Rui-Lin, Zhou Li-Jie, Shi Yan
Workspace Simulation And Trajectory Planning Of Food Handling Robot, Cai Guo-Qing, Hao Rui-Lin, Zhou Li-Jie, Shi Yan
Food and Machinery
Objective: Analyzed the workspace of 6-DOF food handling robot and planed the motion trajectory, so as to provide basis for the layout of food handling platform in workstation and the motion control of robot. Methods: Composition and structure of the robot were analyzed, the kinematics model was established, and the kinematics model was verified by MATLAB. Based on this, the workspace of the robot was modeled and solved, the working area of the robot was obtained, and the reasonable layout position of the food handling table was given; combined with the requirements of food handling task, a three-stage …
Variation Offood Brittleness Of The Fruit And Vegetable Slicesduring Hotair Drying Process, Wu Xu-Yao, Ma You-Chuan, Huang Wen-Ying, Ma Xin, Wu Zhong-Hua
Variation Offood Brittleness Of The Fruit And Vegetable Slicesduring Hotair Drying Process, Wu Xu-Yao, Ma You-Chuan, Huang Wen-Ying, Ma Xin, Wu Zhong-Hua
Food and Machinery
Objective：Aims at the brittleness regulation of fruitand vegetable slices during hotair drying process.Methods：Thisarticle takes fresh potatoes and bananas as the researchmaterials， adopts mechanical and acoustic measuring devices tocollect mechanical and acoustic signals generated by the fruit andvegetable slice samples at the mechanical compression mode，which were collected at different drying times during the hotairdrying process of 80℃， to comprehensively evaluate the fragility of the fruit and vegetable slices.Results：The acoustic emission(AE) signal of the potato slice appeared the drying time of45min， and its AE energy increased gradually with the increaseof drying time.The stress increased rapidly and then …
Effects Of Silver Carp Drying Process On Quality And Content Of Advanced Glycation End Products, Luan Ao-Nan, Wang Chuan-Yang, Kevin Li, Yu Jian, Wang Fa-Xiang, Liu Yong-Le, Li Xiang-Hong, Li Yan
Effects Of Silver Carp Drying Process On Quality And Content Of Advanced Glycation End Products, Luan Ao-Nan, Wang Chuan-Yang, Kevin Li, Yu Jian, Wang Fa-Xiang, Liu Yong-Le, Li Xiang-Hong, Li Yan
Food and Machinery
Objective:The effect of dried silver carp process on quality and safety was studied. Methods: Taking the fresh silver carp as the raw material, the curing concentration (NaCl), curing temperature, curing time, drying temperature and drying time as investigating factors, investigated the effects of different processing conditions on the rehydration rate, color, texture and AGEs formation. Results: The concentration of curing salt and drying temperature had significant effects on the sensory evaluation of dried fish products (P＜0.05), and the optimal processing conditions obtained were curing concentration of 9%, curing temperature of 4 ℃, curing time of 3 h, …
Beef Quality Recognition Based On Classification Feature Extraction And Deep Learning, Wang Xin-Long, Li Xiang
Beef Quality Recognition Based On Classification Feature Extraction And Deep Learning, Wang Xin-Long, Li Xiang
Food and Machinery
Objective: To reduce the influence of data difference and spectral feature redundancy on beef quality recognition. Methods: A beef quality recognition method based on classification feature extraction and deep learning was proposed. The spectral feature extraction method of classified beef was designed, and the improved DPeak algorithm was used for adaptive clustering analysis of spectral data to realize the difference analysis of data. The objective function of beef spectral feature extraction was defined and solved by discrete lion swarm algorithm. The optimal spectral feature subset of each classification was extracted to minimize feature redundancy. The improved lion swarm algorithm (ILSO) …
Expression Method Of Hand-Painted Illustration In Food Packaging Design, Liu Da-Lin, Zhao Li-Na
Expression Method Of Hand-Painted Illustration In Food Packaging Design, Liu Da-Lin, Zhao Li-Na
Food and Machinery
This paper introduces the concept, origin and expression form of hand-painted illustration, analyzes the application value of hand-painted illustration in food packaging design, and studies the application of hand-painted illustration in food packaging design from four aspects: history and culture, humor and interest, emotional expression and brand concept, which provides a reference for different types of food packaging design.
Effects Of Raw Material Composition On The Quality Of Fish-Chicken Dual Protein Vermicelli, Ren Yang-Ying, An Yue-Qi, Dang Mei-Qi, Yang Mei, Xu Guo-Dong, Xiong Shan-Bai
Effects Of Raw Material Composition On The Quality Of Fish-Chicken Dual Protein Vermicelli, Ren Yang-Ying, An Yue-Qi, Dang Mei-Qi, Yang Mei, Xu Guo-Dong, Xiong Shan-Bai
Food and Machinery
Objective:This study aimed to increase the diversity of surimi products and promote the industrialized production of high-quality traditional food. Methods:Using frozen surimi and chicken breast as raw materials, double-protein vermicelli was prepared by extrusion molding. The effects of raw material composition on the quality of double-protein vermicelli were studied by measuring its holding capacity, pulping value, color, stretch, texture and sensory evaluation. Results: The optimal mixing ratio of surimi and chicken was 8∶2, and the optimal amount of water was 20%. The tensile strength, tensile deformation and total sensory scores of the dual protein fish filaments prepared under …
Effects Of Coconut Powder On Thermomechanical Rheology Properties Of Wheat Flour, Li Ming, Sheng Zheng, Li Ze-Jun, Zhang Hai-Hua
Effects Of Coconut Powder On Thermomechanical Rheology Properties Of Wheat Flour, Li Ming, Sheng Zheng, Li Ze-Jun, Zhang Hai-Hua
Food and Machinery
Objective: In order to develop coconut utilization in wheat dough products, the effects of coconut powder on the thermomechanical rheology properties of wheat flour was studied. Methods: Freeze dried coconut flour and wheat flour were mixed in different proportions, then mixed flour was analyzed by GB/T 37511—2019 of Mixolab mixing instrument. Results: The changes of the properties of gluten and starch in wheat flour were analyzed and discussed respectively. It was found that coconut powder had great effects on the properties of both starch and gluten. As the increase of coconut powder, the water absorption of mixed …
Determination Of Nine Mineral Elements In Infant Formula Milk Powder By Rapid Wet Digestion-Inductively Coupled Plasma Optical Emission Spectrosmetry, Chen Hui, Guo Xing-Xin, Peng Jia-Li, Tao Li-Ping, Wu Hai-Zi
Determination Of Nine Mineral Elements In Infant Formula Milk Powder By Rapid Wet Digestion-Inductively Coupled Plasma Optical Emission Spectrosmetry, Chen Hui, Guo Xing-Xin, Peng Jia-Li, Tao Li-Ping, Wu Hai-Zi
Food and Machinery
Objective: This study aimed to provide a rapid and efficient pretreatment method to detect the mineral elements in infant formula milk powder. Methods: Low-temperature rapid wet digestion (digesting temperature was 120 ℃ and digesting time was 90 min) combined with the inductively coupled plasma optical emission spectroscopy (ICP-OES) was used to determine the concentrations of K, Na, Ca, Mg, P, Fe, Zn, Cu, and Mn in infant formula milk powder. Results: The linear correlation coefficients of standard curves for these nine elements were all over 0.999 9. This method was verified by the reference materials in infant …
Research On Food Parallel Robot Grasping Technology Based On Ipso-Bpnn-Pid Control, Huang Chong-Fu, Chang Yu, Liu Li-Chao
Research On Food Parallel Robot Grasping Technology Based On Ipso-Bpnn-Pid Control, Huang Chong-Fu, Chang Yu, Liu Li-Chao
Food and Machinery
Objective: In order to solve the problems of low efficiency and poor precision of parallel robot in food sorting. Methods: Based on the structure of the food sorting system, a moving target grasping strategy of delta robot based on Improved BP neural network and PID control is proposed. The improved particle swarm optimization algorithm is used to optimize the initial weight of BP neural network, and the optimized BP neural network is used to adjust the PID control parameters in real time. The performance of this method is analyzed by experiments, and its superiority is verified. Results: …
Anti Oxidant Capacity And Immuno Enhancing Act Ivity Oflycium Bar Barum Protoplasm, Yang Lu, Zhao Ran, Wu Zhen-Huai, Yuji An-Qiang, Yaang Jia-Mei
Anti Oxidant Capacity And Immuno Enhancing Act Ivity Oflycium Bar Barum Protoplasm, Yang Lu, Zhao Ran, Wu Zhen-Huai, Yuji An-Qiang, Yaang Jia-Mei
Food and Machinery
Objective：This study focused on the antioxidant andimmune enhancing effects of L.bar barumpu ree.Methods：Theantioxidant capacity of L.bar barum puree was measured byes-tab lishing an acute liver injury model.The immune activity of L.bar barum protoplasmwas evaluated by measuring the index ofimmune organs， the content of serum hemolysin and the degreeof plantar thickening.Results：Both low and medium doses of L.bar barum puree could significantly increase the content of glut a-thione peroxidase(GSH PX) in serum(P＜0.05， P＜0.01) andglutathione(GSH) in liver tissue(P＜0.05) ， and significantlydecrease the content ofprotein carbonyl in liver tissue ofmicewith acute alcoholic liver injury(P＜0.05， P＜0.01)andthecontent of malondialdehyde(MDA) (P＜0.05， P＜0.01) …
Monitoring System Of Daqu Fermentation Humidity Based On Improved Ssa Optimization Prediction Model, Liao Jun-Jie, Hu Guang-Zhong, Xia Qiu, Zhu Wen-Chang, Bin Qiu-Yue
Monitoring System Of Daqu Fermentation Humidity Based On Improved Ssa Optimization Prediction Model, Liao Jun-Jie, Hu Guang-Zhong, Xia Qiu, Zhu Wen-Chang, Bin Qiu-Yue
Food and Machinery
Objective: Solve the problems of difficulties of Daqu fermentation detection, judge the fermentation state judgement, and controlling. Methods: The Tent-SSA optimized BP neural network algorithm Daqu fermentation humidity prediction model and dynamic threshold control algorithm were proposed to realize real-time judgment of Daqu state and Daqu fermentation control during Daqu fermentation process. Results: The error predicted by The simulation prediction model for humidity prediction had low error (0.596%), good robust performance and fast convergence speed. Conclusion: The Daqu monitoring system based on this model is accurate and reliable.
Effect Of Thawing Methods On Water Retention And Quality Of Ship-Borne Ultra-Low-Temperature Squid Muscle, Wang Jin, Gao Xue-Hui, Chen Yun-Yun, Yu Hai-Xia, Gao Fei, Zhang Xiao-Jun
Effect Of Thawing Methods On Water Retention And Quality Of Ship-Borne Ultra-Low-Temperature Squid Muscle, Wang Jin, Gao Xue-Hui, Chen Yun-Yun, Yu Hai-Xia, Gao Fei, Zhang Xiao-Jun
Food and Machinery
Objective: This study aimed to explore the best thawing method of squid in storage and processing. Methods: Three kinds of squid were thawed by four thawing methods: low temperature thawing, ultrasonic thawing, flowing water thawing and hydrostatic thawing. The changes of sensory quality, texture characteristics, thawing loss rate, cooking loss rate, volatile base total nitrogen (TVB-N value), thiobarbituric acid value (TBARS value) and salt-soluble protein content (SSP value) of different squid were investigated during the thawing process. Results: Ultrasonic thawing took the shortest time, but thawing loss rate was high and the juice loss was serious; The …
Optimization And Application Of Miqu Prepared By Rhizopus Oryzae From Medium-High Temperature Daqu, Huang Ke-Yi, Deng Jie, Wei Chun-Hui, Huang Zhi-Guo, Shi Xuan-Chao, Ren Zhi-Qiang
Optimization And Application Of Miqu Prepared By Rhizopus Oryzae From Medium-High Temperature Daqu, Huang Ke-Yi, Deng Jie, Wei Chun-Hui, Huang Zhi-Guo, Shi Xuan-Chao, Ren Zhi-Qiang
Food and Machinery
Objective: A microbial enhancer with high-yield glucoamylase was developed from medium-high temperature Daqu and applied to the brewing of Daqu Baijiu for the yield increasing. Methods: Strains with high yield of glucoamylase was isolated from medium-high temperature Daqu and used to make Miqu. Miqu was employed as an enhanced starter in the brewing of Daqu Baijiu, and the yield of Baijiu were tested. Results: A strain M-1 with higher glucoamylase production was isolated and identified as Rhizopus oryzae. The results of the optimized conditions for Miqu making was as follows: bran and rice (2∶8), moisture content …
Recent Progress Of Weissella, Liu Chang-Lei, Wen Yu-Ping, Li Guan-Yang, Jin Qing
Recent Progress Of Weissella, Liu Chang-Lei, Wen Yu-Ping, Li Guan-Yang, Jin Qing
Food and Machinery
Summarizes Weissiella spp. including the isolation and identification, biological properties, acid tolerance, bacterial inhibition, extracellular polysaccharide production, probiotic properties, histological studies, and food and pharmaceutical applications, and provides suggestions for the development and utilization of Weissiella spp.
Effect Of The Electric Field Treatment On The Pullulanase-Catalyzed Hydrolysis Of Waxy Rice Starch, Chen Cai-Wen, Tian Jia-Ning, Yu Kun-Zheng, Li Dan-Dan
Effect Of The Electric Field Treatment On The Pullulanase-Catalyzed Hydrolysis Of Waxy Rice Starch, Chen Cai-Wen, Tian Jia-Ning, Yu Kun-Zheng, Li Dan-Dan
Food and Machinery
Objective:This study aimed to classify the mechanism of pullulanase-catalyzed hydrolysis of waxy rice starch under electric field treatment, by monitoring the changes in hydrolysis efficiency, pullulanase activity, and the structure and properties of waxy rice starch. Methods:The hydrolysis efficiency was determined, and the structure and thermal properties of hydrolysates were characterized, by using scanning electron microscope, X-ray diffractometer, differential scanning calorimeterand rapid viscosity analyzer. Results:Under the control of the following conditions, electric field with intensities ≤2.5 V/cm could increase pullulanase activity, accelerate the hydrolysis, induce the pores and cracks on the granule surface, increase the relative crystallinity, …
Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine, Tang Lin-Yue, Yuan Jiang-Feng, Lai Yu-Ting, Gong Ming-Gui, Sun Jian-Rui
Effects Of Microwave Aging On The Content Of Phenols,Organic Acids And Esters In Black Rice Wine, Tang Lin-Yue, Yuan Jiang-Feng, Lai Yu-Ting, Gong Ming-Gui, Sun Jian-Rui
Food and Machinery
Objective:This study aimed to solve the problems of time consuming and high cost in the natural aging process. Methods: Black rice wine was treated with different microwave power, time and temperature. The contents of main phenols, organic acids, and esters in black rice wine treated by microwave technology were analyzed. Results: Microwave treatment could increase the contents of total esters, protocatechuic acid, gallic acid, syringic acid, acetic acid, ethyl valerate and ethyl acetate, reduce the contents of total phenols, total acids, caffeic acid, citric acid, tartaric acid, lactic acid and ethyl lactate, and have little effect on the contents …
Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System, Ma Cheng-Tong, Li Jun-Wen, Ouyang Hao-Yi, Tan Sui-Yan, Yang Chu-Ping
Prediction Of Apple Sugar Content Based On Correlation Of Characteristic Gray Series In Darkroom System, Ma Cheng-Tong, Li Jun-Wen, Ouyang Hao-Yi, Tan Sui-Yan, Yang Chu-Ping
Food and Machinery
Objective:In order to realize the detection of apple sugar content, a nondestructive prediction method of apple sugar content based on the characteristic gray series of apple reflection spot image in darkroom system is proposed. Methods:The laser with the peak wavelength of 670 nm absorbed by the apple was used as the illumination light source, which was incident from the illumination port of the integrating sphere. The apple sample was placed at the sample port of the integrating sphere, and the reflection spot of the apple sample was obtained at the measuring port of the integrating sphere. Through the …
Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage, Chen Yuan-Yuan, Ma Kai-Hua, Zhang Yu-Ting, Zheng Xiang-Fei, Zhang Xin-Yu, Ma Li-Zhen
Effect Of Microbial Nitrosation Inhibitors On The Formation Of Flavor Substances In Air-Dried Sausage, Chen Yuan-Yuan, Ma Kai-Hua, Zhang Yu-Ting, Zheng Xiang-Fei, Zhang Xin-Yu, Ma Li-Zhen
Food and Machinery
Objective: To study the effects of microbial nitrification inhibitors on the formation and changes of flavors in air-dried sausages. Methods: Four groups of air-dried sausages were designed: MNI group: 0.05% of microbial nitrosation inhibitors (MNI) were added; MNIP group: 0.05% MNI and an inoculation of PRO-MIX5 commercial starter (Staphylococcus xylose, Lactobacillus sake,and L. plantarum) were added; FBFAP group: fermented beef flavorings and compound antioxidants were added, and the sausages were inoculated with the PRO-MIX5 commercial starter; and CK group: blank control (CK). The flavor of air-dried sausages was determined by an amino acid analyzer, Heracles iii ultra-fast gas phase electronic …
Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms, Chen Guo-Tong, Lu Yun, Ma Ping-Ping, Fan Rui, Yang Zhong, Cao Xu
Analysis Of Volatile Components In Different Parts Of Lavender Based On Hs-Spme-Gc-Ms, Chen Guo-Tong, Lu Yun, Ma Ping-Ping, Fan Rui, Yang Zhong, Cao Xu
Food and Machinery
Objective: This study aimed to obtain the volatile components of different parts of lavender in natural condition and provide theoretical basis for quality evaluation and rational utilization of lavender varieties.Methods: Orthogonal experiment was used to optimize the headspace solid phase microextraction (HS-SPME-GC-MS) conditions, and the volatile components of the root, stem, leaf and flower of the representative lavender species France blue were analyzed under the optimal conditions.Results: The optimal conditions of HS-SPME were extraction time 60 min, equilibrium time 20 min and desorption time 5 min. Under the control of these conditions, a total of 36 chemical components …
Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol, Zhang Hu, Duan Yuan-Xing, Zhao Yang, Li Shi-Wei, Yang Liu
Effect Of Tobacco Moisture Content On Releases Of Main Components In Heated Cigarette Aerosol, Zhang Hu, Duan Yuan-Xing, Zhao Yang, Li Shi-Wei, Yang Liu
Food and Machinery
Objective: To investigate the effect of moisture content of heated cigarette on releases of aerosol main components. Methods: Three different types of heated cigarettes were used to study the effects of moisture content of cigarette sticks on the release of main aerosol components by gas chromatography. Results: ① The equilibrium humidity was a positive correlation between the moisture contents of tobacco materials and releases of total aerosol particulate matters. ② The moisture contents of heated cigarettes stored at different equilibrium humilities had a great effect on releases of glycerol and nicotine in aerosol, but a small effect on release of …
Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts, Zhao Qi-Yan, Tang Ning, Zhao De-Chen, Zhang Bo-Ya, Cheng Yong-Qiang
Effects Of Nacl Stress And Cacl2 Supplemental On Phenolic Accumulation And Antioxidant Activity In Common Vetch Sprouts, Zhao Qi-Yan, Tang Ning, Zhao De-Chen, Zhang Bo-Ya, Cheng Yong-Qiang
Food and Machinery
Objective: The study aimed to develop the vegetable value of common vetch (CV) and explore the effects of salt solution on phenolic accumulation and antioxidant activity in CV sprouts.Methods: The effects of NaCl stress and supplemental CaCl2 on free and combined phenolic accumulation in CV sprouts were analysed by UPLC in comparison with pea sprouts, soybean sprouts and mung bean sprouts. The changes of key enzyme activities and gene relative expression levels of PAL, C4H and 4CL, antioxidant enzyme activities and antioxidant activities were investigated under NaCl and CaCl2 treatments.Results: The total phenolics increased from (10.63±0.40) mg GAE/g …
Rapid Determination Of Matrine And Oxymatrine In Honey, Jing Hui-Hua, Xiang Jun, Jiang Deng-Hui, Feng Yan-Ying, Wang Yun-Hao, Wang Liang-Liang
Rapid Determination Of Matrine And Oxymatrine In Honey, Jing Hui-Hua, Xiang Jun, Jiang Deng-Hui, Feng Yan-Ying, Wang Yun-Hao, Wang Liang-Liang
Food and Machinery
Objective:This study aimed to establish a new method for the determination of matrine and oxymatrine in honey by UPLC-MS/MS. Methods: The honey was dissolved in water, and the liquid-liquid extraction pretreatment technology was adopted. The extraction was achieved using ammonia-acetonitrile, with the addition of sodium sulfate to induce a salting out effect. Chromatographic separation was achieved on Inspire HILIC column in the mobile phase composition of acetonitrile and 0.1% formic acid5 mmol/L ammonium acetate buffer. Mass Spectrometry was carried out under the multiple reaction monitoring (MRM) mode with positive electrospray ionization (ESI+) and external standard method for quantitative analysis. …
Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms, Huang Yong-Qiao, Ma Kai, Wu Xin-Wen, Gao Liang, Jian Yin-Chi, Lu Yao, Yang Chang-Biao
Determination Of Bongkrekic Acid In Auricularia Auricular Combined Quechers With Uhplc-Ms/Ms, Huang Yong-Qiao, Ma Kai, Wu Xin-Wen, Gao Liang, Jian Yin-Chi, Lu Yao, Yang Chang-Biao
Food and Machinery
Objective: A rapid method for determination of bongkrekic acid in Auricularia auricular was developed using QuEChERS in combination with UHPLC-MS/MS. Methods: In this study, Several important experimental parameters, including type of extraction solvent, extraction time, adsorbent type and adsorbent dosage were effectively optimized using spiked samples. The sample were shaken with methanol containing 1% ammonia water, and then carried out by the C18 adsorbent purification.Results: The bongkrekic acid was determined within 4 minutes by negative ion multiple reaction monitoring mode analysis and external standard method. The linear range was 0.05~10.00 ng/mL (r＞0.998 3). The limit of detection (LOD) was …