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Articles 211 - 240 of 548
Full-Text Articles in Food Processing
Research Progress Of Cold Storage Refrigeration System And Automation, Liu Han, Xie Jing, Wang Jinfeng
Research Progress Of Cold Storage Refrigeration System And Automation, Liu Han, Xie Jing, Wang Jinfeng
Food and Machinery
In recent years, the energy consumption of our country is becoming more and more serious, and the energy consumption of cold storage occupies a considerable proportion in that of all industries. Therefore, it has become more and more important to reduce the energy consumption of cold storage. The energy conservation, the efficient refrigerating system of three commonly used temperature range with －18 ℃ and above, －18 to －60 ℃, 60 ℃ to 100 ℃ was summarized in this review, respectively, and the single-stage compression cycle, two-stage compression cycle and cascade and auto cascade compression cycle several commonly used refrigeration cycle …
Advances In Pulsed Light And Its Applications In Food Industry, Du Yan, Chen Fusheng
Advances In Pulsed Light And Its Applications In Food Industry, Du Yan, Chen Fusheng
Food and Machinery
As one of the novel nonthermal methods, pulsed light (PL) is a technology for the fast, mild and residue free surface decontamination of food and food contact materials. This paper introduces the appliance and mechanism of PL firstly, and then details its application in food sterilization and removal of toxins and allergens. At last, the drawbacks of PL and its possible developments in food industry are discussed.
Optimization Of The Process For The Enrichment Of Pinolenic Acid From Pressed Pine Seed Oil By Urea Inclusion Method, Liu Zhixin, Liu Zhibin, Zhang Gensheng, Yue Xiaoxia, Yang Huiduo, Xu Chunming
Optimization Of The Process For The Enrichment Of Pinolenic Acid From Pressed Pine Seed Oil By Urea Inclusion Method, Liu Zhixin, Liu Zhibin, Zhang Gensheng, Yue Xiaoxia, Yang Huiduo, Xu Chunming
Food and Machinery
The effects of different concentration of ethanol, ratio of fatty acid to urea, ratio of fatty acid to ethanol, inclusion time, inclusion temperature and times of inclusion on pinolenic acid in pressed pine seed oil were studied. Based on results from single factor test, the optimal experimental design was carried out according to the principle of Box-Behnken central combination test design. The urea inclusion regression model of pinolenic acid was established using the comprehensive score of pinot acid content and loss rate as the response value. The results showed that the fatty acid∶urea =1∶2.88（g/g）, fatty acid∶ethanol =1∶7.98 （g/mL）, inclusion time …
Effects Of Different Drying Methods On The Powder Quality Characteristic In Dateplum Persimmon, Qiao Xiaoquan, Ren Guangyue, Qiao Meng, Duan Xu, Zhang Ledao, Lu Yingjie, Tian Xiaoyu
Effects Of Different Drying Methods On The Powder Quality Characteristic In Dateplum Persimmon, Qiao Xiaoquan, Ren Guangyue, Qiao Meng, Duan Xu, Zhang Ledao, Lu Yingjie, Tian Xiaoyu
Food and Machinery
Fruits of Dateplum persimmon were dried to flours by five different drying methods, including hot-air drying, microwave drying, spray-drying, explosion puffing drying, vacuum freeze-drying, and the physical properties of the five powders were measured, such as wetting sinking time, dispersity, solubility, bulk density. The effects of different drying methods on D. persimmon powder quality characteristic was investigated. The Weight of Variation Coefficient were used to determine comprehensive score of the powders to determine the best method to dry. The results showed that the dispersibility, wet sinking ability, moisture absorption, solubility property of the five powders accounted for a larger proportion, …
Optimization Of Processing And Gel Properties Of Low-Salt Silver Carp Surimi Gel Prepared By Ultra-High Pressure, Dai Huimin, Ye Tao, Li Lin, Jiang Shaotong, Lu Jianfeng
Optimization Of Processing And Gel Properties Of Low-Salt Silver Carp Surimi Gel Prepared By Ultra-High Pressure, Dai Huimin, Ye Tao, Li Lin, Jiang Shaotong, Lu Jianfeng
Food and Machinery
In order to improve the gel properties of low-salt surimi, the optimum conditions for the low-salt silver carp surimi gels by ultra-high pressure processing (UHPP) were obtained by means of response surface methodology (RSM), with the gel strength and water holding capacity (WHC) as indicators. The gel properties (texture, gel strength, WHC, protein pattern and microstructure) of the optimized low-salt surimi (1.5% NaCl, 300 MPa), low-salt surimi (1.5% NaCl, 0.1 MPa) and the standard percentage of added salt of surimi (2.5% NaCl, 0.1 MPa) were compared. The results showed that the optimum conditions of low-salt silver carp surimi gels by …
Preparation And Antioxidant Activity Of Chinese Yam Ferment Powder, Fei Peng, Yang Tongxiang, Zhao Shengjuan, Xu Yunfeng, Chen Junliang, Li Fangmei, Kang Huaibin
Preparation And Antioxidant Activity Of Chinese Yam Ferment Powder, Fei Peng, Yang Tongxiang, Zhao Shengjuan, Xu Yunfeng, Chen Junliang, Li Fangmei, Kang Huaibin
Food and Machinery
The fermentation condition of Chinese yam ferment liquid was optimized with single factor experiments and orthogonal experiment. The Chinese yam ferment powder was prepared using spray drying. The changes in superoxide dismutase (SOD) activity between Chinese yam ferment liquid and recovery ferment liquid were analyzed. The abilities to remove superoxide anions and hydroxyl radicals were measured using the methods of pyrogallol autoxidation and H2O2/Fe system. the optimum fermentation process parameters of Chinese yam ferment liquid were as follow: sugar concentration 12%, inoculum concentration 6%, fermentation time 30 h, fermentation temperature 42 ℃. Under the control of this condition, the SOD …
Discussion On The Status Of Chinese Medicine Dietary Food Certification Management, Xia Xinbin, Yang Yong, Wu Yubing, Xie Mengzhou, Huang Huiyong, Li Ling
Discussion On The Status Of Chinese Medicine Dietary Food Certification Management, Xia Xinbin, Yang Yong, Wu Yubing, Xie Mengzhou, Huang Huiyong, Li Ling
Food and Machinery
Starting from the concept of traditional Chinese medicine dietary food, this paper analyzes the problems that Chinese current laws and regulations on food and drug administration restrict the development of traditional Chinese medicinal dietary food,and points out that there is no clear quality standard for traditional Chinese medicinal dietary food industry at present. In view of the above，it is necessary to draw lessons from the current world food and drug certification system,then formulate the certification system of traditional Chinese medicinal diet in line with the characteristics of the traditional Chinese medicinal diet industry, so as to promote the standardization and …
Research On Health Function Food Management In Korea And Its Enlightenment To China, Tian Ming, Tong Na, Song Tao, Li Yaqi, Jin Fabin, Wan Chao
Research On Health Function Food Management In Korea And Its Enlightenment To China, Tian Ming, Tong Na, Song Tao, Li Yaqi, Jin Fabin, Wan Chao
Food and Machinery
The health food industry is closely related to the cultural background. Korea and China have similar cultural backgrounds. In order to improve the laws, regulations, and management measures of health foods in China, it is necessary to learn the management experience from South Korea. This article reviews the specific methods for the management of Korean function health foods, in order to provide reference materials for health food research workers and law-making authorities in China.
The Construction Of Food Physics Curriculum Group Cultivates Engineering Talents Facing To The New Engineering Disciplines, Guo Zhiming, Zou Xiaobo, Jiang Song, Chen Quansheng, Zhao Jiewen
The Construction Of Food Physics Curriculum Group Cultivates Engineering Talents Facing To The New Engineering Disciplines, Guo Zhiming, Zou Xiaobo, Jiang Song, Chen Quansheng, Zhao Jiewen
Food and Machinery
There is a common phenomenon in domestic and foreign higher education with food engineering talents cultivation process which place particular emphasis on science and neglect toward engineering innovations. With a new perspective of new engineering disciplines, it is a new opportunities of economic development to seize the food industry technical innovation. Construction concept with keep pace with the times and shape talent in the future is developed to advance the new thought for creative train of food engineering. The aim of reform is to cultivate diversity, innovative food engineering talents integrating education resources inside and outside the university. Among the …
Interactions Between Mushroom Powder, Sodium Chloride, And Bovine Proteins And Their Effects On Lipid Oxidation Products And Consumer Acceptability, Natalie Tom, Hatouf Ahmed Alnoumani, Lilian Were
Interactions Between Mushroom Powder, Sodium Chloride, And Bovine Proteins And Their Effects On Lipid Oxidation Products And Consumer Acceptability, Natalie Tom, Hatouf Ahmed Alnoumani, Lilian Were
Food Science Faculty Articles and Research
The antioxidant capacity of dried Agaricus bisporus mushrooms (DAB) in beef has previously been assessed. However, interactions between lipid oxidation products, mushroom polyphenols, and bovine proteins present in beef to explain the mushroom's antioxidative effect, has not been determined. Oven-dried or lyophilized DAB with and without 15 g NaCl/kg beef (1.5%) or 20 g NaCl/kg beef (2%) were added to sarcoplasmic protein homogenates from top round beef. Malondialdehyde and volatile aldehyde binding to sarcoplasmic protein (SP) were monitored. Oven dried had 64% higher total phenolic compared to lyophilized DAB, leading to ∼50% lower malondialdehyde content in beef with oven …
Effects Of Serving Temperature On Sensory Perception And Acceptance Of Brewed Coffee, Matthew James Chapko
Effects Of Serving Temperature On Sensory Perception And Acceptance Of Brewed Coffee, Matthew James Chapko
Graduate Theses and Dissertations
Coffee continues to be one of the most widely consumed beverages worldwide. How an individual perceives a cup of coffee is impacted by a plethora of factors including origin, growing climate, roasting level, and consumption habits. This thesis utilized both trained descriptive panelists and untrained consumer panelists to analyze how serving/consumption temperature modulates sensory perception of brewed coffee in regards to appearance, aroma, flavor, taste, and mouthfeel. Three varieties of coffee (Colombia, Ethiopia, and Kenya) were brewed and served to panelists at four temperatures: 70, 55, 40, and 25 °C. In one study (Study 1, Chapter 3), results from descriptive …
Thermal Inactivation Kinetics Of Salmonella Enterica And Enterococcus Faecium In Ground Black Pepper, Sabrina Vasquez
Thermal Inactivation Kinetics Of Salmonella Enterica And Enterococcus Faecium In Ground Black Pepper, Sabrina Vasquez
Department of Food Science and Technology: Dissertations, Theses, and Student Research
Food safety concerns of low-awfoods have boosted, given the increased number of foodborne illnesses related to these products. Black pepper, among other spices, has been implicated in several outbreaks and recalls in recent years.Salmonella entericahas been identified as the causing agent of outbreaks of contaminated spices. Therefore, increased efforts should be conducted to ensure food safety of spices, including black pepper. Food Safety Modernization Act (FSMA) demands all food processing facilities to conduct proper validations of the decontamination technologies applied to food products. Complete thermal process validations require a deep understanding of the thermal inactivation kinetics …
Investigating The Potential Of Plant-Derived Antimicrobials For Controlling Campylobacter Jejuni In Poultry And Poultry Products, Basanta Raj Wagle
Investigating The Potential Of Plant-Derived Antimicrobials For Controlling Campylobacter Jejuni In Poultry And Poultry Products, Basanta Raj Wagle
Graduate Theses and Dissertations
Campylobacter jejuni infection in humans is strongly associated with the handling and consumption of contaminated poultry products. Interventions reducing C. jejuni contamination in poultry would reduce the risk of subsequent human infections. In the first study, the efficacy of a Generally Recognized as Safe (GRAS) compound, eugenol (EG; derived from cloves), as an antimicrobial dip treatment to reduce C. jejuni in postharvest poultry was evaluated. The antimicrobial efficacy of EG was studied in suspension, emulsion and nanoemulsion delivery systems. EG suspension reduced C. jejuni counts with the greatest reduction of >2.0 Log CFU/sample for the 2% dose of EG (P
The Effects Of Cold Plasma Treatment On Sweet Basil (Ocimum Basilicum), Sauvelson Auguste
The Effects Of Cold Plasma Treatment On Sweet Basil (Ocimum Basilicum), Sauvelson Auguste
Seton Hall University Dissertations and Theses (ETDs)
The study discussed herein looks both to continue and to expand upon previous work conducted here at Seton Hall University, which investigated the effect of cold plasma processing on sweet basil and their essential oils. It was found that the application of cold plasma treatment increases plant growth and eugenol concentration, which is an essential oil component and one of the potential natural antioxidants used in food preservation. In this study, we considered methods for increasing the production and harvesting of plants that produce essential oils such as sweet basil (Ocimum basilicum). The study also incorporated more controls …
Protective Effects Of Sea Buckthorn Procyanidins Soft Capsule On Ethanol-Induced Acute Liver Injury In Mice, Tan Zhichao, Zhang Lianfu
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, Fan Xuehui, Zhang Qingan, Tian Chengrui
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, Jiang Cheng, Chen Anjun, Fu Yunyun, Chen Jie, Liu Xingyan, Hou Xiaoyan, Shen Guanghui, Zhang Zhiqing
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, Zhu Hong, Guo Yubo, Yi Cuiping, Wu Suxi, Mei Xiaodi
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, Zhang Tingting, Feng Yingjie, Yang Zongcan, Liu Xiangzhen, Hao Hui, Zhang Dongyu, Zhu Qi, Zhang Zhan
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, Guo Nansheng, Jiang Hedong, Zhang Bing, Deng Zeyuan, Cai Hong
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 …
Optimization Of Polysaccharide Extraction Process From Morinda Officinalis How And Its Biological Activity In Vitro And In Vivo, Liang Xiaojun, Wei Bingdun, Chen Qian, Ma Jinkui, Li Ke, Huang Xiaochen
Optimization Of Polysaccharide Extraction Process From Morinda Officinalis How And Its Biological Activity In Vitro And In Vivo, Liang Xiaojun, Wei Bingdun, Chen Qian, Ma Jinkui, Li Ke, Huang Xiaochen
Food and Machinery
Morinda officinalis polysaccharide is an important bioactive substance, in terms of its anti-depression, immune enhancement, anti-viral and anti-tumor effects, and polysaccharide holds great potential in function food and drug development. In this study, the Box-Behnken design principle and one-factor-at-a-time experiments were employed to optimize the extraction parameters of polysaccharide from Morinda officinalis How in Deqing area, Guangdong province. The in vitro antioxidant activities of extracted polysaccharides were also investigated. The results showed that the optimal extraction conditions were as follows: extraction time was 2 h, extraction times was 3, and solid-liquid ratio was 1∶11 （g/mL）. Under the control of these …
Optimization Of Fermentation Process For Exopolysaccharides Production Of Weissella Cibaria Sj-02, Chen Yuan, Jia Sisi, Hu Lu, Wang Boyang, Liu Shuliang
Optimization Of Fermentation Process For Exopolysaccharides Production Of Weissella Cibaria Sj-02, Chen Yuan, Jia Sisi, Hu Lu, Wang Boyang, Liu Shuliang
Food and Machinery
Response surface methodology was used to optimize the components of fermentation medium and the fermentation conditions affecting the exopolysaccharides (EPS) production of Weisssella cinerea SJ-02. Taking EPS production as an index, the effects of carbon sources and nitrogen sources in the medium on the yield of exopolysaccharides were explored. The results showed that using MRS as basal medium, keeping its 2% glucose and replacing peptone with 1.5% soy peptone increased the EPS production of strain SJ-02. The Box-Behnken central combination design was used to study the effects of exopolysaccharides production. The optimal fermentation conditions were as follows: inoculation amount 3.00%, …
Comparison Of Agricultural Technology At Home And Abroad And China's Coping Strategies, Chen Shibo, Wang Ge, Chen Yaping
Comparison Of Agricultural Technology At Home And Abroad And China's Coping Strategies, Chen Shibo, Wang Ge, Chen Yaping
Food and Machinery
Compared with the international frontier, the gap in agricultural technology in China is shrinking, and a basic pattern of a small number of leading, majority running and running is formed. In the new era, we should vigorously support the research of basic, cutting-edge and public welfare technologies in agriculture, increase the support of various national science and technology plans to the agricultural sector, accelerate the construction of agricultural IoT technology service platforms, and promote the integration of agricultural technology innovation.
Analysis Of Notifications On China Food Safety By Eu Rapid Alert System For Food And Feed （Rasff） In 2016～2017, Yuan Yanfang, Chen Hui
Analysis Of Notifications On China Food Safety By Eu Rapid Alert System For Food And Feed （Rasff） In 2016～2017, Yuan Yanfang, Chen Hui
Food and Machinery
This article analyzes the food safety notifications on China by EU Rapid Alert System for Food and Feed（RASFF）in 2016~2017 from five perspectives: number of notifications, notifying countries, notification types, product categories and hazard categories. It makes a summary on the characteristics of food safety notifications on China by RASFF in 2016~2017, and analyses the key food categories and risk factors focused by European Union. Finally, three suggestions are concluded to improve food safety supervision in China, including establishing a food safety early warning platform based on data analysis; accurately analyzing the characteristics of food safety risks notified by RASFF to …
Effect Of Distilled Spirit On The Structural Changes And Functional Properties Of Myofibrillar Protein In Saury, Dong Wei, He Xuehua, Dou Chuanlin, Shang Yongbiao
Effect Of Distilled Spirit On The Structural Changes And Functional Properties Of Myofibrillar Protein In Saury, Dong Wei, He Xuehua, Dou Chuanlin, Shang Yongbiao
Food and Machinery
In this study, the effect of distilled spirit on the myofibril protein solubility, emulsification, turbidity, surface hydrophobicity, gel properties and sulfhydryl content were investigated in the saury. The results showed that, with the increase of the additive amount of distilled spirit, the solubility, emulsification, gel hardness, elasticity, mastication, cohesion and water retention of myofibril protein first increased and then decreased. However, no significant change was found in the gel whiteness, and the turbidity, surface hydrophobicity and sulfhydryl content were first decreased and then increased. In conclusion, the distilled spirit processing had a great influence on the functional characteristics of the …
Effects Of Xylitol And Mannitol On The Structural And Functional Properties Of Peanut Proteins, Zhou Xiangjun, Yang Xuechun, Liu Haiyu, Gao Yixia
Effects Of Xylitol And Mannitol On The Structural And Functional Properties Of Peanut Proteins, Zhou Xiangjun, Yang Xuechun, Liu Haiyu, Gao Yixia
Food and Machinery
The changes of solubility, emulsibility, ultraviolet absorption spectroscopy, fluorescence emission spectroscopy and surface hydrophobicity of peanut proteins (PP) were investigated using the methods of 1-naphthalenesulfonicacid-8-(phenylamino)-sodium salt (ANS), ultraviolet and fluorescence spectroscopy. The results showed that, with the increasing of xylitol and mannitol, the solubility of PP increased within pH 3.0～6.0, reached minimum value almost at pH 4.0, while the emulsibility increased first and declined finally. We supposed that the tyrosine was wrapped into the inner core of PP, while the tryptophan exposed to the surface of PP, resulting in the fluorescence intensity of them reduced with the increasing of xylitol …
Separation And Screening Of Lactic Acid Bacteria From The Traditional Yak Yogurt Resistant Against Of Acid And Bile Salts, Li Yang, Zhao Xin, Zhang Yu, Wang Hongwei, Suo Huayi
Separation And Screening Of Lactic Acid Bacteria From The Traditional Yak Yogurt Resistant Against Of Acid And Bile Salts, Li Yang, Zhao Xin, Zhang Yu, Wang Hongwei, Suo Huayi
Food and Machinery
There are abundant lactic acid bacteria resources in traditional yak yoghurt. 48 strains of lactic acid bacteria were isolated and identified from yak yoghurt collected from Qinghai region. Screening of acid-tolerant and bile-resistant salts for 11 strains of lactic acid bacteria that thrive and can be used in foods. The results showed that 6 strains had a survival rate of >50.00% in pH 3.00 artificial gastric fluid, and 2 strains had a growth efficiency of >15% in 0.30% bile salt. Lactobacillus rhamnosus 2016SWU.05.0601 was the best resistant strain. The survival rate in artificial gastric juice is 119.53%, and the growth …
Effects Of Roasting Temperature On The Fatty Acid, Pigment And Ethanol-Extracts And Their Antioxidant Activities In Chlorella Pyrenoidosa, Wang Baobei, Jia Jing, Sun Hui, Liu Lei, Cai Shulin, Li Liting
Effects Of Roasting Temperature On The Fatty Acid, Pigment And Ethanol-Extracts And Their Antioxidant Activities In Chlorella Pyrenoidosa, Wang Baobei, Jia Jing, Sun Hui, Liu Lei, Cai Shulin, Li Liting
Food and Machinery
Effects of roasting temperature and duration on the composition fatty acid and pigment and antioxidant attribute of Chlorella pyrenoidosa were studied. The results showed that oleic acid (C18:2) and linolenic acid (C18∶3,n3) were the predominant fatty acids species, and poly unsaturated fatty acid (PUFA) accounted for ca. 76.69% of total fatty acids in Chlorella. Roasting treatment had little effect on fatty acid content and composition when the temperature no higher than 150 ℃. However, remarkably decrease of PUFA content was found with 200 ℃. Both pigments and the antioxidant activity of ethanol extracts (scavenging DPPH) from …
Screening And Identification Of Dominant Strains Of Fermented Characteristic Lobster Sauce In Guizhou Sansui, Zhang Qin, Wang Xiujun, Shang Jingtian, Gao Xiaohong
Screening And Identification Of Dominant Strains Of Fermented Characteristic Lobster Sauce In Guizhou Sansui, Zhang Qin, Wang Xiujun, Shang Jingtian, Gao Xiaohong
Food and Machinery
In order to realize the stable quality and large-scale production of Guizhou Sansui characteristic bacteriallobster sauce.Pure cultivar and mixed bacillus fermentation was carried out to strengthen the dominantstrainsbased on the preservation of the original flavors. Thirteen strains were isolated and screened from traditional production techniques and inoculated into soybeans. Preliminary screen and rescreen by using sensory evaluation and determination of protease activity as indicators,five strains of dominant strains were selected for physiological and biochemical experiments. Finally, three strains of B, F and J were selected for 16Sr DNA sequencing ，and establishingphylogenetic trees. The results showed that strains of B, F …
Electronic Nose And Gc-Ms Analysis On Volatile Compounds In Essential Oils From Mandarin （Citrus Reticulata Blanco） Peels, Cao Xuedan, Fang Xiugui, Li Erhu, Xu Jianguo, Zhao Kai
Electronic Nose And Gc-Ms Analysis On Volatile Compounds In Essential Oils From Mandarin （Citrus Reticulata Blanco） Peels, Cao Xuedan, Fang Xiugui, Li Erhu, Xu Jianguo, Zhao Kai
Food and Machinery
The essential oils were extracted from four varieties of Citrus Reticulata peels (Citrus poonensis Hort. ex Tanaka, Citrus unshiu Marc., Citrus suceosa Hort.ex Tanaka and Citrus tardiferax Hort. ex Tanaka）by roll-pressed, and then volatile compounds were analyzed by electronic nose and gas chromatography-mass spectrometry (GC-MS) technology. The results shows that: 5 kinds of the 18 sensors have a significant difference in the response values of the four kinds of Citrus Reticulata Blanco oils (P＜0.05), electronic nose was applied to distinguish the essential oils through the principal component analysis (PCA) and the classification index was above 86%. GC-MS analysis showed there …