Antibacterial Activity Of NΑ-Lauroyl-L-Arginate Ethylester Against Five Pathogenic Microorganisms Of Fruits And Vegetables,
2018
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
Antibacterial Activity Of NΑ-Lauroyl-L-Arginate Ethylester Against Five Pathogenic Microorganisms Of Fruits And Vegetables, Li Yang, Xu Xiaohui, Li Yang, Feng Fengqin
Food and Machinery
Antibacterial activity of Nα-lauroyl-L-arginate ethylester(LAE) against five pathogenic microorganisms of fruits and vegetables were investigated in this study. Bacteriostatic test in vitro was taken to research the antibacterial activity of LAE. Penicillium digitatum, Penicillium italicum, Botrytis cinerea, Alternaria alternate and Pectobacterium carotovorum subsp. Carotovorum were treated as the model bacteria of pathogenic microorganisms of fruits and vegetables, and the minimum inhibitory concentration(MIC) of LAE against these model bacteria were determined. The inhibition of LAE to the hypha growth for moulds and the bactericidal effect of LAE for bacteria were also determined. Then the combined antibacterial effects of LAE …
Effect Of Calcium Ascorbate And Ε-Polylysine Treatment On Preservation And Color-Protection Of Fresh-Cut Sweet Potato,
2018
College of Food Science, Southwest University, Chongqing 400715, China; National Demonstration Center for Experimental Food Science and Technology Education ﹝Southwest University﹞, Chongqing 400715, China
Effect Of Calcium Ascorbate And Ε-Polylysine Treatment On Preservation And Color-Protection Of Fresh-Cut Sweet Potato, Liu Shuo, Wang Liqun, Zhang Xinyi, Deng Lili, Zeng Kaifang
Food and Machinery
“Erlang Shao” were used to evaluate the effects of calcium ascorbate and ε-polylysine on improving the quality of fresh-cut sweet potato during 4℃ storage. To reveal the mechanism, the browning degree, the total number of colonies, the content of total phenol, as well as the activities of polyphenol oxidase (PPO), peroxidase (POD) and phenylalnine ammonialyase (PAL) of fresh-cut sweet potato were measured. The results indicated that comparing with control, 5% calcium ascorbate + 0.03% epsilon-polylysine could significantly retard the increase of the browning index, the total number of colonies and maintain a higher levels of total phenol content, inhibit the …
Effects Of Addition Of Prunus Mume On The Quality Of Beef Patties During Storage,
2018
College of Food and Boiengineering, Xihua University, Chengdu, Sichuan 610039, China
Effects Of Addition Of Prunus Mume On The Quality Of Beef Patties During Storage, Luo Ming, Ma Yuan, Yuan Yiping, Luo Yujie, Zhang Guirong, Yin Xiaocui, Xu Yingping
Food and Machinery
Using beef patties without and with 0.02% butylated hydroxytoluene (BHT) as controls, effects on lipid oxidation, protein oxidation, antibacterial activity and quality of beef patties supplemented with 5%, 10%, 15% and 20% Prunus mume (PM) were studied after storage at -18 ℃. The results showed that the beef patties with addition of 10%, 15% and 20% PM decreased TBARS values significantly compared to the control samples（P＜0.05）, and the lipid antioxidation of 20% PM was commensurate with 0.02% BHT during the storage. The TVB-N value of all treated samples reduced significantly after 4 d（P＜0.05）, and the beef patties added 20% PM …
Optimization Of Extraction Process Of Heparinoid From Swim Bladder And Evaluation Its Anticoagulant Activity,
2018
Guangdong Ocean University, College of Food Science and Technology, Zhanjiang, Guangdong 524088, China
Optimization Of Extraction Process Of Heparinoid From Swim Bladder And Evaluation Its Anticoagulant Activity, Zhou Siyi, Qu Yi, Zhong Saiyi, Du Zhenxing, Su Weimin, Chen Suhua, Hong Pengzhi, Wu Xiaohe
Food and Machinery
A natural heparin-like compound was isolated from swim bladder and its anticoagulant activities were determined. The response surface analysis based on Box-Behnken design was adopted to examine effects of protease consumption, extracting time and temperature on heparin-like compound extraction. The anticoagulant activity of swim bladder heparin-like compound was evaluated by APTT， PT and TT method. Consequently, the optimum conditions were as follows. The concentration of protease from Bacillus licheniformis was 5.4 mg/mL, extracted at 50 ℃ for 20 h. Under the control of these conditions, the predicted extraction rate by mathematical model was (1.79±0.05)%, and the standard error was 3.24%. …
Curren Tstatus And Trends Of Theoretical Research On Subcritical Fluid Extraction Of Agricultural Products,
2018
School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Curren Tstatus And Trends Of Theoretical Research On Subcritical Fluid Extraction Of Agricultural Products, Wu Qifei, Shi Jiachen, Sun Jun, Chen Zhongwei, Xu Bin
Food and Machinery
As a new extraction technology, subcritical fluid extraction has received more and more attention, due to its high efficiency and quality. The paper first introduces the basic principle of subcritical fluid extraction, and analyzes the effects of extraction solvent, temperature and pressure, time and frequency, and volume of solvent on the extraction efficiency. Furthermore, the kinetics and thermodynamics of the subcritical fluid extraction process are explained. Then, the quality of the oils obtained by subcritical fluid extraction and other extraction techniques is compared, indicating the migration of bioactive concomitants in the subcritical fluid. Finally, the future research direction of subcritical …
The Inducing Factors And Effects Of Stress Response In The Live Transport Of Fish,
2018
Shanghai Ocean University College of Food Science and Technology, Shanghai 201306, China; Shanghai Aquatic Products Processing and Storage Engineering Technology Research Center, Shanghai 201306, China; Shanghai Professional Technology Service Platform on
The Inducing Factors And Effects Of Stress Response In The Live Transport Of Fish, Wu Bo, Xie Jing
Food and Machinery
On the basis of the analysis of fish transportation stress, the blood biochemical indexes, non specific immune cells and antioxidative functions were integrated, and the stress in the transportation of fish was reviewed in detail from different stress angles, such as hypoxia stress, ammonia nitrogen stress, density stress, objective transportation condition stress, temperature stress and so on. The reaction inducing factors and effects in the process of fish live transportation were proposed, in order to provide reference for the circulation and sale of live fish.
Functional Components In The Fruit Of Gardenia Jasminoides Ellis And Their Application,
2018
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
Functional Components In The Fruit Of Gardenia Jasminoides Ellis And Their Application, Wang Li, Li Na, Li Yan, Qian Haifeng, Zhang Hui, Qi Xiguang
Food and Machinery
The components of Gardenia jasminoides Ellis and their healthy functions were summarized in this review. The relative products of the leaves and fruits were also introduced, which was helpful to the development and application of the Gardenia fruit.
Advances In Vitamin C Content In Dried Fruits And Vegetables By Using Pretreatment And Drying Methods,
2018
College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China
Advances In Vitamin C Content In Dried Fruits And Vegetables By Using Pretreatment And Drying Methods, Ouyang Mengyun, Wang Yan, Luo Fenglian, Sun Ziqin, Cao Sheng
Food and Machinery
Starting from two important processes of fruit and vegetable drying, namely drying pretreatment and drying technologies, a comprehensive review of the research status of the effect of different pretreatment and drying methods on the Vitamin C content of dried fruit and vegetable products was reviewed.
Development On The Alcoholic Drink Mixed With Extracts Of Alpinia Offcinarum And Turmeric Circuma And Its Sensory Quality,
2018
Guangdong Shunde Winery Co., Ltd., Shunde, Guangdong 528300, China
Development On The Alcoholic Drink Mixed With Extracts Of Alpinia Offcinarum And Turmeric Circuma And Its Sensory Quality, Ye Xiaohong, Tang Wenshi, Li Li
Food and Machinery
In order to develop a novel unique flavor healthy alcoholic product, the reflux technology was used to extract effective constituents from the plant materials including Alpinia offcinarum Hance and Turmeric Circuma Longa, respectively, and obtained the alcoholic drink mixed with Alpinia offcinarum and alcoholic drink mixed with Turmeric Ciruma through blending and aging. Then the quality, sensory and volatile aroma components of the 2 products were further analysed. The results indicated that the products meet the demand of standard GB/T 27588—2011, appeared as golden and transparency colour, with evident plant aroma characteristic. Among them, the alcoholic drink mixed with Alpinia …
Optimization On Preparation Of Cross-Linked Inulin By Response Surface Analysis And Its Physic Ochemical Properties,
2018
College of Food Science, Southwest University, Chongqing 400715, China
Optimization On Preparation Of Cross-Linked Inulin By Response Surface Analysis And Its Physic Ochemical Properties, Ma Xiaohan, Liu Xiong, Deng Jing, Zhao Dan, Tian Junqing, Zhao Tiantian
Food and Machinery
In order to find optimal conditions for the preparation of cross-linked inulin, the effects of inulin concentration, cross-linking agent dosage, pH, reaction temperature and reaction time on the degree of cross-linking were investigated by single factor experiment. The preparation conditions of the cross-linked inulin were optimized according to central-composite design principles and response surface analysis. The result showed that the concentration of inulin, cross-linking agent dosage, pH and reaction time had significant effects on cross-linking degree of cross-linked inulin. The optimal conditions were the concentration of inulin 4.63%, cross-linking agent dosage 12.04 g/100 g, pH 10.19 and reaction time 3.59 …
Optimization Of Malolactic Fermentation Process Condition Of Northeast China V.Amurensis Wines,
2018
College of Life Science, Jiamusi University, Jiamusi, Heilongjiang 154007, China
Optimization Of Malolactic Fermentation Process Condition Of Northeast China V.Amurensis Wines, Han Chengwu, Gao Pengfei, Ding Yuping
Food and Machinery
In order to improve the flavor of Vitis amurensis Rupr. wines, adopted the single factor experiment and orthogonal experiment method, aimed to optimize the process condition of the malic acid-lactic acid fermentation. The optimal fermentation conditions were as followed: initial pH 3.00, fermentation temperature 20 ℃, inoculation of Lactobacillus 4 mL/100 mL and sugar content above 10.7 g/L. Under the optimum conditions, malic acid was converted into lactic acid by malic acid-lactic acid fermentation. pH value was increased 0.19±0.05, total acidity(in terms of malic acid) decreased (2.67±0.10) g/L, which weaken the tartness of original wine.
The Optimization Of Fermentation Process Of Pure Black Rice Glutinous Rice,
2018
College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, Sichuan 610106, China
The Optimization Of Fermentation Process Of Pure Black Rice Glutinous Rice, He Yong, Yi Xiaocheng, Zhao Bin, Wei Zuchen, Chen Pei, Wan Ping
Food and Machinery
Five main influencing factors, including the time and the temperature of steeping rice, the amount of yeast addition, and the fermentation temperature and time were used as single factor, and their influences in fermentation of black rice fermented glutinous rice was studied by single factor experiments. Moreover, the sensory scale was used as the response value, and the fermentation process of black rice fermented glutinous rice was optimized by response surface method. The optimum fermentation conditions were as follows, the black rice was immersed at 63 ℃ for 1.0 h, with the addition of 4.4% wine , and thenthe fermented …
Changes Of Amygdalin Content And Its Correlation With The Bitterness In Apricot Kernels During The Bitterizing Processing,
2018
School of Food Engineering and Nutrition Sciences, Xi’an, Shaanxi 710119, China
Changes Of Amygdalin Content And Its Correlation With The Bitterness In Apricot Kernels During The Bitterizing Processing, Shi Fangfang, Wang Nana, Fan Xuehui, Zhang Qingan
Food and Machinery
The aim of this study was to investigate the relationship between bitterness and amygdalin content. Sensory evaluation was conducted with quinine as the standard to evaluate the debitterized apricot kernels (debitteriizng temperature 70 ℃, solid-to-liquid ratio 1∶12, debittering time 6 h), and a certain samples were taken every 30 minutes. Then the sensory evaluation was performed on each sample and the content of amygdalins in samples was determined by high performance liquid chromatography (HPLC). The results showed that the content of amygdalin in bitter apricot kernels was positively correlated with the bitterness by sensory evaluation. After debitterizing of 5 hours …
Improvement Of The Cut Tobacco Recovery Process Of S400 Machine,
2018
China Tobacco Henan Industrial Co., Ltd., Zhengzhou, Henan 450001, China
Improvement Of The Cut Tobacco Recovery Process Of S400 Machine, Li Chenggang, Xu Kejing, Wang Aixia, Xu Ke, Zhang Tingting, Yuan Qishan
Food and Machinery
In order to improve the cut tobacco recovery efficiency of deposed cigarettes in its manufacturing department , the processing parameters of S400 tobacco recovery machine were optimized by using response surface methodology. The results indicated that belt conveyor speed, frequency of draught fan (I) and (II) were determined as the significant influencing factors for the tobacco recovery efficiency. The optimized parameters were improved as followed: belt conveyor frequency was 25 Hz; the draught fan (I) frequency was 53.4 Hz; the draught fan (II) frequency was 35 Hz. After improving, tobacco recovery efficiency was increased from 47.1% to 56.1%. Mereover no …
Protective Effects Of Sea Buckthorn Procyanidins Soft Capsule On Ethanol-Induced Acute Liver Injury In Mice,
2018
School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; Beijing Powdery Health Industry Co., Ltd., Beijing 101117, China
Protective Effects Of Sea Buckthorn Procyanidins Soft Capsule On Ethanol-Induced Acute Liver Injury In Mice, Tan Zhichao, Zhang Lianfu
Food and Machinery
The protective effect of sea buckthorn procyanidins soft capsules on acute liver injury induced by alcohol in mice were investigated. The sea buckthorn procyanidins soft capsules were made from sea buckthorn seed extract, sea buckthorn oil and perilla seed oil. The procyanidins concentration was signature component, with regarding to the recommended daily intake (3 g/person/day) and average weight (60 kg) of an adult, the dosage for feeding mice is 0.05 g/kg·BW and is expanded to 10, 20, 30 times as low, medium and high level (0.5, 1.0, 1.5 g/kg· BW) in this study. The mice were intragastrically administered with corresponding …
Identification And Variation Of Flavonoid Content Of Semen Astragali Complanati Wine In The Brewing Process,
2018
College of Sports, Shaanxi Normal University, Xi’an, Shaanxi 710062, China;School of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an, Shaanxi 710062, China
Identification And Variation Of Flavonoid Content Of Semen Astragali Complanati Wine In The Brewing Process, Fan Xuehui, Zhang Qingan, Tian Chengrui
Food and Machinery
Purpose: The total flavonoids content was determined by the colorimetric method of NaNO2-Al(NO3)3, and the changes of the contents of five kinds of flavonoids were detected by the high performance liquid chromatography (HPLC) to study on the content of flavonoids in the brewing process of the different processing of the semen astragali complanati, which provided an important reference for the brewing and quality control. Results: The contents of other flavonoids in semen A complanati showed a increase trend in the beginning, then followed by a decrease, which was consistent with the changing trend of …
The Effect Of Yeast On The Organic Acids Of Fig Wine,
2018
College of Food Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China
The Effect Of Yeast On The Organic Acids Of Fig Wine, Jiang Cheng, Chen Anjun, Fu Yunyun, Chen Jie, Liu Xingyan, Hou Xiaoyan, Shen Guanghui, Zhang Zhiqing
Food and Machinery
The effect of fermentation with different yeast on the organic acids of fig wine was investigated. Five different commercial yeast were used in this test, and the content of organic acids in fig wine and juice was determined. Moreover, the relationship between quality of fig wine fermented by different yeast and the organic acid was investigated through the PCA analysis. The results showed that, content of total organic acid, including acetic acid, succinic acid, citric acid, maleic acid in fig wine fermented by five different yeast raised. The contents of acetic acid and succinic acid in wine fermented by D254 …
Freshness Detection Of Fresh Rice Noodles Based On Electronic Nose,
2018
School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
Freshness Detection Of Fresh Rice Noodles Based On Electronic Nose, Zhu Hong, Guo Yubo, Yi Cuiping, Wu Suxi, Mei Xiaodi
Food and Machinery
Flavor of fresh rice noodles at different temperature were detected during 0～30 h storage through electronic nose to evaluate the freshness of fresh rice noodles, verified by total plate count and sensory evaluation by electronic nose. Results: The freshness of fresh rice noodles worsen with the storage temperature rise and time extension. At 4 ℃, there was no significant change in flavor of fresh rice noodles, the fresh rice noodles could maintain freshness for more than 30 h. At 25 ℃ and 37 ℃, respectively, the fresh rice noodles with peculiar smell at 24 h and 18 h. Response values …
Fast Examination Of Total Colony Numbers In Electronic Cigarette Liquids Based On Adenosine Triphosphate (Atp) Bioluminescence Method,
2018
China Tobacco Henan Industrial Co., Ltd., Zhengzhou, Henan 450001, China
Fast Examination Of Total Colony Numbers In Electronic Cigarette Liquids Based On Adenosine Triphosphate (Atp) Bioluminescence Method, Zhang Tingting, Feng Yingjie, Yang Zongcan, Liu Xiangzhen, Hao Hui, Zhang Dongyu, Zhu Qi, Zhang Zhan
Food and Machinery
In order to fast evaluate the hygiene situation of electronic cigarette liquids, the fast examination of total colony numbers in electronic cigarette liquids has been achieved which was based on the adenosine triphosphate (ATP) bioluminescence method.The method has been optimized, and the examination results of total colony by ATP method was compared with the results by National standard microbial detection method . Results showed: (1) the optimal temperature for ATP examination was 25 ℃, optimal time for bioluminescence reaction was 30 s, the detection limit of ATP was 2.36 × 10-12 mol/L, RSD was 3.5%～8.2%, and the sample recovery …
Extraction Optimization, Purification And Characterization Of Polysaccharide From The Roots Of Radix Tetrastigma,
2018
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, China
Extraction Optimization, Purification And Characterization Of Polysaccharide From The Roots Of Radix Tetrastigma, Guo Nansheng, Jiang Hedong, Zhang Bing, Deng Zeyuan, Cai Hong
Food and Machinery
The polysaccharide from from roots of Radix Tetrastigma were extracted by water bath, and the yield of polysaccharide was determined by response surface methodology. Based on the single factor test, The optimum conditions were as followed: temperature 96 ℃, ratio of water to liquid 34∶1 （mL/g）, extraction time 2 h. Under the conditions, the yield of polysaccharide was (21.23±0.77)%. After deprotein with sevage method, fractionated and purified by DEAE-Cellulose 52 anion exchange column and Sepharose CL-4B gel fltration column, successively . The purifed polysaccharide was designated as RTP-3-1 and its components, molecular weight, primary structure and domains were identified by …
