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Full-Text Articles in Food Biotechnology
Extrusion Pretreatment Improves The Protein Digestibility Of Black Soybean Meal And Its Effects On The Final Quality And Antioxidant Activity Of Soy Sauce, Cheng Xiaoyuan, Ma Chengye, Li Hongjun
Extrusion Pretreatment Improves The Protein Digestibility Of Black Soybean Meal And Its Effects On The Final Quality And Antioxidant Activity Of Soy Sauce, Cheng Xiaoyuan, Ma Chengye, Li Hongjun
Food and Machinery
[Objective] To investigate the regulatory mechanisms of extrusion pretreatment on the protein digestibility of black soybean meal and systematically evaluate its effects on soy sauce quality and antioxidant activity. [Methods] A mixture of black soybean meal and flour was pretreated using extrusion technology for soy sauce brewing. Extrusion temperature, screw speed, flour addition, and moisture content were selected as the main process parameters to investigate their effects on protein digestibility. Under the optimal extrusion conditions, the raw materials were prepared and further subjected to simulated low-salt solid-state soy sauce fermentation. Amino nitrogen, total nitrogen, reducing sugar, pH, total acid, ammonium …
Microwave-Assisted Enzymatic Hydrolysis Of Tibetan Sheep Blood Protein And Analysis Of Product Characteristics, Yu Xilu, Gu Xuedong, Chen Yujin, Zhang Hongxin, Ciren Danzhu
Microwave-Assisted Enzymatic Hydrolysis Of Tibetan Sheep Blood Protein And Analysis Of Product Characteristics, Yu Xilu, Gu Xuedong, Chen Yujin, Zhang Hongxin, Ciren Danzhu
Food and Machinery
[Objective] This study aims to utilize fresh Tibetan sheep blood as raw material, investigate the enhancing effect of microwave-assisted technology on enzymatic hydrolysis efficiency, and achieve high-value utilization of Tibetan sheep blood. [Methods] A microwave-assisted trypsin hydrolysis method is employed to enzymatically hydrolyze the proteins. The optimal hydrolysis conditions are established through single-factor experiments and response surface methodology. The resulting hydrolysates are characterized using scanning electron microscopy (SEM) and a fully automated amino acid analyzer. [Results] The optimal hydrolysis conditions are determined as follows: microwave temperature of 40 ℃, microwave time of 50 min, enzymatic hydrolysis time of 240 min, …
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. …
Optimization Of Processing Technology And Analysis Of Volatile Components In Jinxuan Black Tea Cream, Yunxian Wang, Yunxiong Zhao, Lianfeng Luo, Baogui Liu, Jingjing Yang
Optimization Of Processing Technology And Analysis Of Volatile Components In Jinxuan Black Tea Cream, Yunxian Wang, Yunxiong Zhao, Lianfeng Luo, Baogui Liu, Jingjing Yang
Journal of Food Science and Biotechnology
[Objective ] This study is intended to optimize the preparation process of Jinxuan black tea cream,enhance the content of tea polyphenols,and compare the effects of different processing methods on the volatile components of the tea cream.[Method ] With dried Jinxuan black tea as the raw material,response surface methodology was adopted to examine the impacts of tea-to-water ratio,enzyme dosage,ultrasonic power,and ultrasonic duration on the mass fraction of tea polyphenols in the black tea cream.Furthermore,headspace solid-phase microextraction (HS-SPME ) coupled with gas chromatography-mass spectrometry (GC-MS ) was employed to detect and analyze the volatile components in the black tea cream samples processed …
Selenium Biofortification Strategy Utilizing Liquid Culture Of Tremella Aurantialba Mycelia And Analysis Of Its Nutrient Composition, Ya’Na Zhang, Jing Zhang, Ruipeng Yu, Mengmeng Xu, Lei Chen, Zhenghua Gu, Guiyang Shi, Zhongyang Ding
Selenium Biofortification Strategy Utilizing Liquid Culture Of Tremella Aurantialba Mycelia And Analysis Of Its Nutrient Composition, Ya’Na Zhang, Jing Zhang, Ruipeng Yu, Mengmeng Xu, Lei Chen, Zhenghua Gu, Guiyang Shi, Zhongyang Ding
Journal of Food Science and Biotechnology
[Objective ] This study aims to establish an efficient selenium biofortification strategy based on the liquid culture of Tremella aurantialba (T.aurantialba ) mycelia to enhance its selenium enrichment capacity.[Method ] The changes of growth phenotype,metabolic behavior,and selenium enrichment characteristics of T.aurantialba mycelia were analyzed during the Na 2SeO 3-induced selenium biofortification process in liquid culture.[Result ] Addition of 5 mg/kg and 10 mg/kg Na 2SeO 3 promoted mycelium growth,whereas Na 2SeO 3 with the mass fraction exceeding 10 mg/kg significantly inhibited the growth of T.aurantialba mycelia,with the inhibitory effect intensifying as Na 2SeO 3 mass fraction increased.Therefore,5 mg/kg and 10 …
Continuous Preparation Of Antioxidant Low Molecular Weight Hyaluronic Acid By Coupling Of Enzymolysis And Membrane Separation, Teng Wei, Liu Junhui, Wu Jinhong, Liu Shutao
Continuous Preparation Of Antioxidant Low Molecular Weight Hyaluronic Acid By Coupling Of Enzymolysis And Membrane Separation, Teng Wei, Liu Junhui, Wu Jinhong, Liu Shutao
Food and Machinery
Objective: This study aimed to construct an enzymolysis and membrane separation method to improve the production efficiency of low molecular hyaluronic acid (HA). Methods: A continuous enzymolysis and membrane separation coupling reaction system was designed, which consisted of an enzyme biological reaction tank and a flat polyethersulfone ultrafiltration membrane separation module. By evaluating membrane flux, membrane contamination, hyaluronic acid concentration, and yield, the effects of various factors on the separation of low molecular HA in the enzyme-membrane coupling system were systematically investigated. The process parameters of the enzyme-membrane coupling reaction were further optimized through orthogonal experiments. Results: The optimal process …
Process Optimization And Drying Characteristics Of Instant Noodles Mixed With Potato And Oat, Huo Rui, Kang Lianhe, Zhang Zhifen, Qiao Jianmin, Zhang Yuanyuan
Process Optimization And Drying Characteristics Of Instant Noodles Mixed With Potato And Oat, Huo Rui, Kang Lianhe, Zhang Zhifen, Qiao Jianmin, Zhang Yuanyuan
Food and Machinery
Objective: This study aimed to prepare a nutritious instant noodle with regional characteristics. Methods: The process was optimized using whole potato flour, oat flour, and wheat gluten flour as the basic ingredients. The sensory score, breakage rate, rehydration rate, texture characteristics and hot air-drying characteristics were measured. Results: The optimum process parameters for the potato-oatmeal noodles were as follows: 53% water addition, mixing for 10 min, maturing for 40 min and steaming for 12 min. Based on the drying model, the optimum drying conditions were determined to be 40 min at 90 ℃. Conclusion: The potato-oat instant noodles prepared under …
Process Study On Mixed Bacterial Solid-State Fermentation Of Rice Bran For The Preparation Of Oryzanol And Evaluation Of Its Antioxidant Activity, Xia Xinxin, Lin Hai, Yang Guliang, Peng Xia, He Xinle
Process Study On Mixed Bacterial Solid-State Fermentation Of Rice Bran For The Preparation Of Oryzanol And Evaluation Of Its Antioxidant Activity, Xia Xinxin, Lin Hai, Yang Guliang, Peng Xia, He Xinle
Food and Machinery
Objective: In order to improve the yield of oryzanol of rice bran. Methods: Rice bran was selected as the research subject, and Saccharomyces cerevisiae and Bacillus subtilis were selected as solid-state fermentation strains through single-factor experiments. The mixed bacterial solid-state fermentation process was optimized by Box-Behnken response surface method combined with the single factor experiments, based on the content of oryzanol. The antioxidant activity of the fermentation extracts was evaluated using DPPH and ABTS free radical scavenging assays. Scanning electron microscopy （SEM） was used to analyze the principle of oryzanol enrichment in mixed bacterial solid-state fermentation. Results: Under the of …
Research On Process Optimization And Quality Of Intermittent Microwave-Hot Air Coupling Drying Peanut, Zheng-Zheng Ling, Guang-Yue Ren, Xu Duan, Lin-Lin Li, Li-Ping Ma, Tie-You Dong, Xin-Lin Li
Research On Process Optimization And Quality Of Intermittent Microwave-Hot Air Coupling Drying Peanut, Zheng-Zheng Ling, Guang-Yue Ren, Xu Duan, Lin-Lin Li, Li-Ping Ma, Tie-You Dong, Xin-Lin Li
Food and Machinery
In order to explore the optimal process parameters of intermittent microwave-hot air coupled peanut drying, the optimal process parameters of peanut intermittent microwave-hot air coupled drying were determined using the response surface optimization analysis method. The comprehensive score of peanut drying rate and drying energy efficiency as response values. The optimal conditions were as followed: hot air temperature 45 ℃, microwave intensity 1.25 W/g, microwave intermittent ratio 1.10. Under these conditions, it was verified that the peanut intermittent microwave-hot air coupling drying rate was 0.517 g/min, the energy efficiency was 0.433 MJ/g, the comprehensive drying score was 0.710, and the …
Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil, Yun-Yun Chen, Jin-Ying Wang, Xing-Rui Wang, Yu-Ze Han
Optimization Of Degumming Process And The Analysis Of Physicochemical Indexs Of Flaxseed Oil, Yun-Yun Chen, Jin-Ying Wang, Xing-Rui Wang, Yu-Ze Han
Food and Machinery
In order to improve the quality of flax oil, the conventional hydration method was used to optimize the degumming process conditions and analyze the main physicochemical indexes. Taking the degumming rate as an indicator, the effects of temperature, time, water addition and phosphoric acid addition on the degumming effect of flax seed oil were studied respectively. Optimizing the degumming conditions of flax seed oil based on single factor and Box-Behnken center combination experimental design principle. The results showed that the best process conditions for degumming by conventional hydration method of flax seed oil: the temperature of 63.7 ℃, the time …
Study On The Preparation Of Ace Inhibitory Peptides By Probiotic Fermentation Of Quinoa, Li Shuai, Yuan Ya-Hong, Yue Tian-Li
Study On The Preparation Of Ace Inhibitory Peptides By Probiotic Fermentation Of Quinoa, Li Shuai, Yuan Ya-Hong, Yue Tian-Li
Food and Machinery
Objective: The potential ability of probiotics to prepare angiotensin-converting enzyme (ACE) inhibitory fermentation broth from quinoa and the effects of fermentation process on it were investigated. Methods: In this study, 18 strains of lactic acid bacteria and 12 strains of yeast were screened for their ability to prepare ACE inhibitory fermentation broth using quinoa as the raw material and the ACE inhibition rate as an indicator. The inoculum amount, fermentation temperature and fermentation time were optimized by orthogonal tests. Finally, the peptides in the fermentation broth were identified, and the selected peptides were tested in vivo to evaluate …
Screening Of Vanillin Converting Microorganism By Ferulic Acid And Optimization Of Fermentation Conditions, Li Li-Qun, Liu Qiang, Qiao Yue-Mei, Guo Chun-Sheng, Chai Ying, Hao Jie
Screening Of Vanillin Converting Microorganism By Ferulic Acid And Optimization Of Fermentation Conditions, Li Li-Qun, Liu Qiang, Qiao Yue-Mei, Guo Chun-Sheng, Chai Ying, Hao Jie
Food and Machinery
Objective: The aim of this study was to obtain vanillin converting microorganism by ferulic acid and optimize of fermentation conditions. Methods: The strains that can produce vanillin by ferulic acid which is screened form Daqu of Baijiu. The single factor experiment and orthogonal experiment were applied to optimize the fermentation conditions by shake flask fermentation. Results: The results showed that isolate B2-12 was identified as Bacillus subtilis and the high yield of vanillin was reached 34.5 mg/L under the conditions of liquid loading 44%, pH 10, 43 ℃ and shaking speed 160 r/min for 4 days fermentation. …
Study On Optimization Of Extraction Technology And Antibacterial Activity Of Total Flavonoids From The Root Of Clausena, Xu Dan-Ni, Su Xiu-Fang, Huang Li-Juan
Study On Optimization Of Extraction Technology And Antibacterial Activity Of Total Flavonoids From The Root Of Clausena, Xu Dan-Ni, Su Xiu-Fang, Huang Li-Juan
Food and Machinery
Objective:This study aimed to optimize the optimal extraction process of total flavonoids from the root of Clausena anisum-olens and determine the yield and antibacterial effect of total flavonoids from different producing areas. Methods:The total flavonoids were extracted by ultrasonic method from the roots of C. anisum-olens. Through single factor and orthogonal test, the effect of ultrasonic assisted extraction conditions on the extraction rate of total flavonoids from the root of C. anisum-olens was investigated, and the extraction and antibacterial test of total flavonoids from various producing areas were carried out. Results: The optimum extraction process of total flavonoids …
Enzymatic Preparation And Activity Study Of Rice Bran Protein-Derived Ace Inhibitory Peptides, Zhang Ling-Yu, Miao Jian-Yin, Cao Yu, Dai Wei-Jie, Liu Guo, Li Zhen-Wei, Cao Yong
Enzymatic Preparation And Activity Study Of Rice Bran Protein-Derived Ace Inhibitory Peptides, Zhang Ling-Yu, Miao Jian-Yin, Cao Yu, Dai Wei-Jie, Liu Guo, Li Zhen-Wei, Cao Yong
Food and Machinery
Objective:This study aimed to develop new rice bran products.Methods:The ACE inhibition rate was used as an indicator, and the rice bran protein was optimized by single factor and response surface experiments. The optimal enzyme hydrolysate peptides were separated by ultrafiltration, activity evaluation and amino acid composition analysis were performed.Results:The optimal process conditions were as follows: pH 7.2, mass substrate concentration 8.2 g/100 mL, enzymolysis at 46 ℃ for 3 h, and enzyme addition 0.3 g/100 g rice bran protein. Under the control of these conditions, the ACE inhibition rate of the enzymatic hydrolysate was (73.15±0.64)%, …
Optimization Of Carrot Heat Pump Drying Process By Response Surface Methodology, Peng Yu-Hang, Wang Guang-Hong, Sun Fei-Xue, Jin Ting-Xiang
Optimization Of Carrot Heat Pump Drying Process By Response Surface Methodology, Peng Yu-Hang, Wang Guang-Hong, Sun Fei-Xue, Jin Ting-Xiang
Food and Machinery
Objective:This study focuses on optimizing the heat pump drying process of carrot.Methods:On the basis of single factor experiment, Box-Behnken experiment was designed. Color difference, rehydration ratio and β-carotene content were used to study the effects of initial temperature, drying temperature rise and slice thickness on carrot drying quality. The regression equation was established, and the interaction between three independent factors on the response was analyzed. The optimal drying process parameters and the predicted values of carrot heat pump drying were obtained. Finally, the optimal parameters were determined by comparing the experimental results with the predicted values.Results:The …
Optimization Of Process Parameters And Antioxidant Activity Of Purslane Compound Rice, Qi Jia-Hui, Chen Shan-Feng, Yan Yu-Hong, Han Feng, Liu Xin-Hua, Li Rui-Hong
Optimization Of Process Parameters And Antioxidant Activity Of Purslane Compound Rice, Qi Jia-Hui, Chen Shan-Feng, Yan Yu-Hong, Han Feng, Liu Xin-Hua, Li Rui-Hong
Food and Machinery
Objective: Preparation of Portulaca oleracea compound rice with antioxidant properties. Methods: Broken rice flour is the main raw material and Portulaca oleracea L. was the auxiliary material. On the basis of single factor experiment, response surface experiment was designed with comprehensive score, and the technological parameters of screw speed, barrel temperature, purslane addition and feed moisture, and the antioxidant characteristics of compound rice were detected by the clearance of DPPH and ABTS. Results: The results showed that the optimal formula for preparing purslane compound rice was the follow: The screw speed was 140 r/min, barrel temperature was 120 ℃, purslane …