Optimization Of Preparation Technology Of Ovalbumin-Peptide By Complex Enzyme And Its Antialcoholic Effect,
2022
Changchun University of Technology, Changchun, Jilin 130000 , China
Optimization Of Preparation Technology Of Ovalbumin-Peptide By Complex Enzyme And Its Antialcoholic Effect, Qi Xing-Yu, Yan Xiao-Juan, Zhang Hai-Yue
Food and Machinery
Objective: This study aimed to verify the antialcoholic activity of ovalbumin peptide and improve the added value of egg products. Methods: Ovalbumin was hydrolyzed by alkaline protease and trypsin. The activity rate of alcohol dehydrogenase (ADH) was taken as index, and the enzymolysis process was optimized by response surface methodology. The total antioxidant activity, hydrolysis degree, amino acid composition and relative molecular weight of ovalbumin peptide were determined to evaluate the antialcoholic effect of ovalbumin peptide. Results: The optimum enzymatic hydrolysis conditions were as follows. Under the conditions of enzymatic hydrolysis time 5 h, dosage of complex enzyme 3 100 …
Optimizations Of Extraction And Separation Process Of Saponins And In Vitro Antioxidant Activity From The Female Gonad Of Apostichopus Japonicus,
2022
College of Food Sciences & Technology, Shanghai Ocean University, Shanghai 201306 , China ；Shandong Marine Resource and Environment Research Institute, Yantai, Shandong 264006 , China
Optimizations Of Extraction And Separation Process Of Saponins And In Vitro Antioxidant Activity From The Female Gonad Of Apostichopus Japonicus, Zhong Jing-Shi, Zhang Jian, Liu Fang, Wang Gong-Ming, Wang Yi-Xin
Food and Machinery
Objective: This study aimed to optimize the ultrasonic-assisted extraction technology and HSCCC separation process of saponins from the female gonad of Apostichopus japonicus and to explore their antioxidant activities. Methods: Extraction time, ethanol concentration, ultrasonic time, and solid-to-solvent ratio as the influencing factors were considered in this study, and the extraction process of saponin was optimized using the response surface methodology. The ratio of solvent systems, the volume flow of mobile phases, and the rotation speeds of HSCCC were optimized. The DPPH radical and ABTS radical scavenging experiments were conducted to evaluate the antioxidant activities of the crude extracts and …
Protective Effect Of Vine Tea Extract Combined With Cassia Extract On Chronic Alcoholic Liver Injury In Rats,
2022
College of Horticulture, Hunan Agricultural University, Changsha, Hunan 410128 , China ；NationalResearch Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Changsha,Hunan 410128 , China
Protective Effect Of Vine Tea Extract Combined With Cassia Extract On Chronic Alcoholic Liver Injury In Rats, Zhan Li, Tang Quan-Quan, Zhang Zi-Ying, Shi Yu, Teng Jian-Zao, Liu Zi-Long, Liu Zhong-Hua, Zhang Sheng
Food and Machinery
Objective: This study aimed to investigate the protective effect and mechanism of solid beverage with vine tea combined with and cassia on alcoholic liver injury in rats. Methods: SD rats were given 43%vol aging by gavage to establish model of alcoholic liver injury. The model was fed with low, medium and high doses of solid beverage. The appropriate ratio of solid beverages was detected by cell test, the physiological and biochemical indicators of rats were detected by using kits, and the expression of related differential genes was studied by transcriptomic analysis to assessing the effect of vine tea extract combined …
Cloning, Expression And Catalytic Function Analysis Of Chitinase From Streptomyces Diastaticus,
2022
College of Pharmaceutical Science, Soochow University, Suzhou, Jiangsu 215123 , China
Cloning, Expression And Catalytic Function Analysis Of Chitinase From Streptomyces Diastaticus, Li Qin, Wang Li-Mei, Qi Bin
Food and Machinery
Objective: This study focused on improving the production of chitosan oligosaccharides by chitinase degradation of chitin. Methods: Using genetic engineering methods to clone, prokaryotic expressing, and investigating enzymatic properties of the chitinase from Streptomyces diastaticus, and the chitinase activity was explored by homology modeling, amino acid comparison of the catalytic domain, and site-directed mutagenesis. Results: After cloning and prokaryotic expression, the enzyme production cycle was shortened from 7 d to 24 h, and the enzyme activity reached 132 U/L, which was 32% higher than the original bacterial enzyme activity (100 U/L). The amino acids that determine the activity of chitinase …
Preliminary Study Of Encapsulation To Improve Stability Of Aldh Of Wickerhamomyces Anomalus,
2022
Hunan Provincial Commodity Review Center, Changsha, Hunan 410111 , China
Preliminary Study Of Encapsulation To Improve Stability Of Aldh Of Wickerhamomyces Anomalus, Chen Geng, Ni Yu-Jun, Zhong Min, Xu Li-Na, Guo Wei-Dan
Food and Machinery
Objective: This study aimed to improve the stability Wickerhamomyces anomalus aldehyde dehydrogenase in cold storage and gastrointestinal environment, so as to develop products that reduce active aldehydes in gastrointestinal tract. Methods: ALDH was extracted from 6 Wickerhamomyces anomalus strains with the highest activity of aldehyde dehydrogenase (ALDH), and encapsulated by sodium alginate and calcium chloride method. The stability of ALDH by embedding was studied in cold storage and simulated gastrointestinal environment. Results: The specific activity of ALDH produced by W. anomalus J3, J7, J8, J9, J12 and J18 ranged from 86.77 U/mg to 482.14 U/mg, and that of J9 was …
Effects Of Different Particle Sizes Of Finger Millet On The Quality, Antioxidant Ability And In Vitro Digestibility Of Wheat Bread,
2022
School of Food and Bioengineering, Changsha University of Science & Technology, Changsha, Hunan 410114 , China
Effects Of Different Particle Sizes Of Finger Millet On The Quality, Antioxidant Ability And In Vitro Digestibility Of Wheat Bread, Xiao Pan-Fei, Xie Hua, Tao Xiao-Han, Luo Yi-Ni, Tang Yu-Hua, Li Chi-Ling
Food and Machinery
Objective: This study aimed to exploit the functional bread of finger millet. Methods: Based on the physical and chemical properties, antioxidant capacity, special digestion characteristics and sensory evaluation of bread, the effects of different particle sizes of finger millet flour on the characteristics of wheat bread were investigated. Results: Compared with the bread without finger millet powder, the bread with 200 mesh finger millet powder increased the total phenol content by 225.78%, the DPPH radical scavenging rate by 42.96% and the iron ion reduction ability by 22.97%. The finger millet powder with smaller particle size showed stronger anti-oxidation ability. Moreover, …
Comparative Analysis Of Gel Quality Of Chinese Herring Surimi And Common Surimi,
2022
Fujian Anjoy Food Co., Ltd., Xiamen, Fujian 361022 , China ；Key Laboratory of Refrigeration and Conditioning Aquatic Products Processing,Ministry of Agriculture and Rural Affairs, Xiamen, Fujian 361022 , China
Comparative Analysis Of Gel Quality Of Chinese Herring Surimi And Common Surimi, Chen Hui, Huang Jian-Lian, Zhou Wen-Guo, Chen Jiang-Ping
Food and Machinery
Objective: This study aimed to provide theoretical support for the processing application of surimi products by comparing the gel characteristics of Chinese herring surimi and the common surimi. Methods: The surimi gels of Chinese herring, silver carp, white croaker and golden-thread fish were prepared, and the difference of gel strength, texture profile analysis (TPA), gelation index, gel deterioration index, water retention, whiteness and microstructure among the four kinds of surimi were investigated. Results: The hardness, chewiness, adhesiveness, gel strength and water retention of Chinese herring surimi were significantly higher than the those of silver carp surimi (P＜0.05). The …
The Research On Detection Methods For Fat In The Fermented Milk Added With The Cmc-Na,
2022
Hunan Testing Institute of Product and Commodity, Changsha, Hunan 410011 , China
The Research On Detection Methods For Fat In The Fermented Milk Added With The Cmc-Na, Liu Fang-Fang, Xue Min-Min, Wu Qian, Peng Cheng-Cheng, Deng Ling-Yun
Food and Machinery
Objective: Improving the accuracy of the determination of fat in CMC-Na fermented milk. Methods: The national standard method-alkali hydrolysis method was used to determine the fat contained in CMC-Na fermented milk. By optimizing the key parameters in the alkali hydrolysis method, hydrolysis of hydrolysis instead of ammonia hydrolysis, and adding metal ions to the alkali hydrolysis method, the suitable fat containing CMC-Na fermented milk was explored. Results: ① With the increase of CMC-Na content, the lower the fat result in CMC-Na fermented milk measured by alkaline hydrolysis; ② The change of the four key conditions, such as the ammonia volume, …
The Institutional Direction Of Punitive Damages For Food Safety In The United States And Chinese Path,
2022
Law School of Guizhou Minzu University, Guiyang, Guizhou 550025 , China
The Institutional Direction Of Punitive Damages For Food Safety In The United States And Chinese Path, Tang Xiao-Mei
Food and Machinery
The punitive damages system of American food safety mainly points to the premise of subjective viciousness, the jury's discretion according to the actual loss and viciousness, and the setting of punitive damages ceiling. By observing and examining the punitive damages system for food safety in the United States, some issues in the current punitive damages system for Chinese food safety in China need to be urgently solved, such as neglecting subjective vicious evaluation, rigid calculation method of punitive damages, and excessive upper limit multiple of compensation. In this regard, we can optimize and construct the food safety punitive damages system …
Design And Experiment Of Key Components For Longan Core Removal,
2022
College of Engineering, South China Agricultural University, Guangzhou, Guangdong 510642 , China
Design And Experiment Of Key Components For Longan Core Removal, Qing Yan-Mei, Li Chang-You
Food and Machinery
Objective: In order to solve the problem of poor integrity with mechanical coring and get the lantern pulp, and explore the factors affecting the performance of longan coring. Methods: Taking Guangdong 'Chuliang' longan fresh fruit as the research object, the key parts of core removal were designed and the core removal test platform was built. The core removal method with the ejector pin and flexible washer positioning was adopted. The ejector diameter, the rubber washer bore diameter and the ejector speed were chosen as the three main factors,and the stoning success rate, the stoning loss rate and the pulp integrity …
Research On Alcohol Prediction Model Based On Lstm And Iga-Bp,
2022
School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401 , China
Research On Alcohol Prediction Model Based On Lstm And Iga-Bp, Zhang Jian-Hua, Shang Jian-Wei, Wang Chang, Zhao Yan, Li Ke-Xiang, Li Xiang-Li
Food and Machinery
Objective: In order to solve the problem of inaccurate detection of alcohol accuracy due to manual "flower picking" in the segmented liquor picking process. Methods: Designed and built a segmented liquor taking system based on alcohol accuracy modeling. The research collected tuning fork frequency values, tuning fork built-in temperature values, alcohol solution temperature values and pump speed values under dynamic conditions in different modes of alcohol solutions with different concentrations, implemented adaptive tuning fork frequency filtering and dynamic compensation based on least mean square algorithm (LMS) and long short-term memory network (LSTM), and built a liquor accuracy prediction model based …
On Line Fast Detection Of Defective Rice Flour Based On Machine Learning Algorithm,
2022
College of Applied Science, Jiangxi University of Technology, Ganzhou, Jiangxi 341000 , China
On Line Fast Detection Of Defective Rice Flour Based On Machine Learning Algorithm, Tan Lu-Min, Feng Xin-Gang
Food and Machinery
Objective: To realize the rapid on-line detection of defective rice flour. Methods: Non-contact data acquisition of rice flour blocks through cameras, image upload and processing, obtained the contour perimeter and area, approximate contour perimeter and area, approximate contour points and radius of the contour circle. According to the characteristics of rice flour block sample data, the SVM classification algorithm was used to analyze the sample set composed of multi feature data of rice flour block. Results: Compared with five algorithms, the average accuracy of GBDT classification algorithm was 89% with elapsed time of 1.10 s. The average accuracy of KNN …
Trajectory Optimization Of High Speed Parallel Robot Based On Improved Gravity Search Algorithm,
2022
Suihua College, Suihua, Heilongjiang 152061 , China
Trajectory Optimization Of High Speed Parallel Robot Based On Improved Gravity Search Algorithm, Xu Yan
Food and Machinery
Objective: To solve the problems of large rigid impact and poor motion stability of parallel robot in the process of picking and placing canned food. Methods: Based on the architecture of high-speed parallel robot, a trajectory planning method was proposed for trajectory optimization of end effector of high-speed parallel robot. A multi constraint, multi-objective and nonlinear trajectory optimization model was established and solved by an improved gravity search algorithm. The feasibility of the proposed method was verified by simulation. Results: Compared with the planned method, the proposed method can complete the task in the shortest time of 0.169 1 s. …
Effects Of Different Types Of Polysaccharides On The Properties Of Edible Film Of Collagen From Loach (Misgurnus Anguillicaudatus) Skin,
2022
College of Life Science, Yangtze University, Jingzhou, Hubei 434025 , China
Effects Of Different Types Of Polysaccharides On The Properties Of Edible Film Of Collagen From Loach (Misgurnus Anguillicaudatus) Skin, Sun Peng-Peng, Wang Wei, Liu Ying, Xu Yang, Ren Yuan-Yuan
Food and Machinery
Objective: In order to develop composite edible film with excellent performance, the effects of different types of polysaccharides on collagen edible film's properties were evaluated with collagen from loach skin being the basic raw material. Methods: Pectin (acidic polysaccharose), pullulan (neutral polysaccharide) as well as chitosan (alkaline polysaccharide) were used to compose the film with collagen, respectively. The composite film's properties including basic properties, mechanical properties and barrier properties were measured and analyzed. Results: Pullulan had less effect on the thickness, water content and opacity of collagen edible film compared with pectin. Three kinds of polysaccharides could all reduce the …
Optimization And Antioxidant Study Of Protein Film Prepared From Corn Germ Pulp,
2022
The Food and Pharmaceutical Engineering Institute, Suihua College, Suihua, Heilongjiang 152061 , China
Optimization And Antioxidant Study Of Protein Film Prepared From Corn Germ Pulp, Zhang Jin-Feng, Wang Yan-Wen, Fan Heng-Jun, Zhang Yu-Ting
Food and Machinery
Objective: This study aimed to prepare a zein film from the gliadin in corn-germ pulp and study its process, performance and antioxidant properties. Methods: The corn-germ pulp was used as raw material, and zein was extracted from corn germ pulp by alkali-soluble acid precipitation. A certain amount of ethanol solution was added, and then an appropriate amount of plasticizer and reducing agent was added by using the ultrasonic assist method. After the membrane solution was in a water-bath at room temperature for 30 minutes, the membrane solution was cast into a zein membrane. The influence of the four factors of …
Research On Food Packaging Design For Elderly Populations,
2022
Jiangsu Engineering Vocational and Technical College, Nantong, Jiangsu 226007 , China
Research On Food Packaging Design For Elderly Populations, Zhang Pan
Food and Machinery
According to the food consumption characteristics of the elderly group, this review analyzed the needs of the elderly group for food packaging design, and the food packaging design scheme for the future was proposed.
Study On Antioxidant Activity And Probiotic Proliferation Of Lycium Barbarum Oligosaccharides In Vitro,
2022
State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology,Shandong Academy of Sciences, Jinan, Shandong 250353 , China ；School of Food Science and Engineering,Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353 , China
Study On Antioxidant Activity And Probiotic Proliferation Of Lycium Barbarum Oligosaccharides In Vitro, Liu Hao, Cui Bo, Yu Bin
Food and Machinery
Objective: To improve the development and utilization rate of Lycium barbarum in the saline-alkali land of the Yellow River Delta. Methods: Ultraviolet spectrophotometer was used to determine the scavenging effect of Lycium barbarum oligosaccharide on free radicals and its effect on the growth curve and pH value of Bifidobacterium adolescentis, so as to determine its antioxidant performance and the ability to proliferate probiotics. Results: The concentration of Lycium barbarum oligosaccharide reached 2.0 mg/mL, the maximum scavenging rates of DPPH·, ABTS+ and hydroxyl radical reached (65.32±0.03)%, (99.93±0.05)% and (21.86±0.01)%, respectively, when the concentration was between 0.1~0.5 mg/mL, it showed …
Structural Characteristics Of Polysaccharides From Lactarius Hatsudake And Its Effect On Intestinal Flora,
2022
Hunan Key Laboratory of Forestry Edible Sources Safety and Processing, Changsha,Hunan 410004 , China ；College of Food Science and Engineering, Central SouthUniversity of Forestry and Technology, Changsha, Hunan 410004 , China
Structural Characteristics Of Polysaccharides From Lactarius Hatsudake And Its Effect On Intestinal Flora, Zhang Xin-Fang, Cheng Meng-Ya, Yang Qiao, Chang Song-Lin, Ren Jia-Li
Food and Machinery
Objective: This study aimed to explore the regulatory effect of Lactarius hatsudake polysaccharide on intestinal flora. Methods: LHP was extracted from L. hatsudake by hot water. LHP-1 and LHP-2 were further purified and characterized. The effects of LHPs on body weight and intestinal microbiome composition were studied in antibiotic-induced mice. Results: LHP-1 was mainly composed of mannose, glucose and galactose. The molar mass ratio of LHP-1 was 3.44∶61.10∶1.22. LHP-2 is mainly composed of mannose and glucose, with a molar mass ratio of 3.84∶153.00. It has a "neuronal" structure and a chain structure region. LHP intervention can restore the structure and …
Antioxidant Activity And Qualitative Analysis Of Wheat Bran Polyphenols Purified Using Hpd 600 Macroporous Resin,
2022
College of Food Science and Technology, Wuhan Polytechnic University, Wuhan, Hubei 430000 , China
Antioxidant Activity And Qualitative Analysis Of Wheat Bran Polyphenols Purified Using Hpd 600 Macroporous Resin, Tian Fu-Lin, Huang Wen-Jing, Zhang Chi, Shen Wang-Yang, Wu Fan
Food and Machinery
Objective: A process was developed for the purification of bran polyphenols from HPD 600 macroporous resin. The purity and antioxidant activity of the extracts were analyzed before and after purification, and the polyphenol fractions in the purified products were characterized. Methods: The bound polyphenols in wheat bran were extracted by alkali hydrolysis, and the dynamic adsorption-desorption conditions of the macroporous resin were optimized by single-factor test to determine the optimal purification process. The antioxidant activity fraction was determined by ABTS and DPPH radical scavenging rate. The characterization of the polyphenol fraction in the purified product was completed by UPLC-MS/MS. Results: …
Effect Of The Amount Of Palm Oil On Dough Quality,
2022
Laboratory of Development and High-Value Utilization of Beibu Gulf Specialty SeafoodResources, Beibu Gulf University, Qinzhou, Guangxi 535011 , China ；College of Light Industryand Food Engineering, Guangxi University, Nanning, Guangxi 530004 , China
Effect Of The Amount Of Palm Oil On Dough Quality, Ma Qi-Yu, Liu Zhong-Yi, Fu Man, Liu Wen-Xing, Li Xi-Yu
Food and Machinery
Objective: This study aimed to explore the reasonable application of palm oil in the production of fermented dough such as Naan, bread, steamed bread, soda biscuits and frozen flour products. Methods: The effect of palm oil addition on the rheological properties of fermented dough was measured by rotary rheometer, and the microstructure of dough was observed by scanning electron microscope to analyze the mechanism of palm oil addition on dough components. Results: When palm oil of 4%, 6%, 8%, 10% and 12% were added to wheat flour, the fermentation and rheological properties of dough changed significantly. When the content of …
