Study On Effect Of Different Storage Temperatures On Ipomoea Aquatica,
2018
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai 201306, China
Study On Effect Of Different Storage Temperatures On Ipomoea Aquatica, Yang Chong, Xie Jing
Food and Machinery
The preservation effects of different storage temperatures (0，5，10，15 ℃) on ipomoea aquatica was studied on sensory evaluation, vitamin C, water migration by low-field nuclear magnetic resonance (LF-NMR) technique, etc.. The results show that the chilling injury happened easily under 0 ℃ cold store and senescence accelerated under 15 ℃. Under 5 ℃ and 10 ℃, the sensory quality, the content of chlorophyll, vitamin Cand other quality indexes of ipomoea aquaticawere maintained relatively well, and the quality above all maintained well for 8 d storage. Under 5 ℃, chilling injury happened at later storage (the tenth days later) and the quality …
Extract Of Volatile Oil And Antibacterial & Insecticidal Activity Of Large Red Algae Gracilaria Lemaneiformis,
2018
College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266000, China
Extract Of Volatile Oil And Antibacterial & Insecticidal Activity Of Large Red Algae Gracilaria Lemaneiformis, Wang Guorui, Pang Jinlong, Zhang Demeng, Li Fang
Food and Machinery
The volatile oil of Gracilaria lemaneiformis was extracted by direct steam distillation and solvent extraction-steam distillation, meanwhile gas chromatography-mass spectrometry (GC-MS) and antibacterial & insecticidal activity were conducted. The GC-MS showed that compared with direct steam distillation extraction, in solvent extraction-steam distillation extraction the relative content of aldehyde compounds which has lower odor threshold is 0.20%, meanwhile the relative content of carboxylic acid and ester is 21.54% in solvent extraction-steam and distillation extraction. The antibacterial activity of volatile oil on 5 kinds of pathogens （Escherichia coli O157, Staphylococcus aureus, Salmonella enterica, Listeria monocytogenes, Vibrio parahemolyticus） is moderate, and the median …
Extraction And Antioxidant Activity Of Ursolic Acid From Amygdalus Communis L. Peel,
2018
Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, Urumqi, Xinjiang 830054, China; Key Laboratory of Plant Stress Biology in Arid Land, Xinjiang Normal University, Urumqi, Xinjiang 830054, China; College of Life Sciences, Xinj
Extraction And Antioxidant Activity Of Ursolic Acid From Amygdalus Communis L. Peel, Zhang Jun, Li Jin, Lu Haiying, Ma Xue
Food and Machinery
Based on the results of single-factor experiments, orthogonal test of ursolic acid from Amygdalus communis L. peel were carried out to determine the optimum process parameters.The antioxidant activities were evaluated by the reducing power, DPPH free radical, hydroxyl free radical and hemolysis of mice red blood cells.The optimum extraction parameters were determined as follows: alcohol concentration 65%,extraction temperature 80 ℃; solid-to-solvent ratio 120 (g/mL); extraction time 1.5 h. Under these conditions, the experimental yield of ursolic acid was 2.89%. The concentration of ursolic acid was 0.1 mg/ml, ursolic acid of Amygdalus communis L. peel displayed a strong antioxidant activity, the …
Study On Isolation, Structure Characterization And Radical Scavenging Activity Of Cyanobacteria Polysaccharide,
2018
Key Laboratory of Carbohydrate Chemistry and Biotechnology of Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
Study On Isolation, Structure Characterization And Radical Scavenging Activity Of Cyanobacteria Polysaccharide, Huang Yijia, Wu Jianrong, Zhu Li, Zhan Xiaobei
Food and Machinery
An effective method to extract Cyanobacteria polysaccha-ride was established in this study and a high yield of polysaccharide (25.1%) was achieved by optimizing extraction condition (hot water with ultrasonic treatment). After purification, a main purified polysaccharide (CB-2-1) with molecular weight of 8.4 kDa was collected and the compositions included rhamnose, arabinose, xylose, mannose, glucose and galactose, with mole percentages of 0.51%, 13.35%, 18.21%, 51.38%, 4.87% and 11.67%, respectively. The results of NMR showed that the CB-2-1 component of cyanobacteria polysaccharide was mainly α-type glycosidic bond. Moreover, the purified CB-2-1 polysaccharide had great anti-oxidant activities. The highest scavenging activities of DPPH …
Advances In Microbial Conversion And Utilization Of Distiller Grains,
2018
School of Animal Science and Technology, Northeast Agricultural University, Harbin,Heilongjiang 150030, China
Advances In Microbial Conversion And Utilization Of Distiller Grains, Gao Mingkun, Wen Guangyu, Qian Fang
Food and Machinery
The application of microbial conversion in the use of distiller grain is the by-products of the production of solid white liquor, which has become increasingly prominent. Themicrobial in detoxifying distiller grains, production of high added value feed and feed additive in recently years, especially the effect of it application in animal feed were reviewed. Moreover, a prospect of application of microbial technology in the transformation of distiller grains.
Analysis Of Themain Organic Acids And The Production Of Vinegar From Defective Fresh Jujube Fruits By Batch And Semi-Continuous Fermentation,
2018
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang，Henan 471023, China;Henan Engineering Research Center of Food Material, Luoyang，Henan 471023, China;Luoyang Engineering and Technology Research Center of Microbial Fer
Analysis Of Themain Organic Acids And The Production Of Vinegar From Defective Fresh Jujube Fruits By Batch And Semi-Continuous Fermentation, Xiang Jinle, Guan Suixia, Ma Liping, Ren Guangyue, Yuan Yunxia, Kang Huaibin
Food and Machinery
In order to utilize defective fresh Jujube fruits, Jujube vinegar was explored by crushing, pulping, alcohol fermentation, batch and semi-continuous acetic fermentation. The fresh Jujube fruits were cleaned, washed, and then crushed and pulped with addition of water to 1.5 times. The Jujube pulp was inoculated Angel fruit wine yeast with inoculation quantity 0.1%. After fermentation 72 h at the room temperature, the alcohol concentration of Jujube wine could reach 8.07%Vol. Then Jujube wine was inoculated with the inoculum size of acetic acid bacteria 10%, and the first batch of acetic fermentation finished in 60 h. In the next acetic …
Optimization On Dry-Cured Process Of Sansui Plasma Duck Of Guizhou,
2018
Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy, Guiyang, Guizhou 550025, China; College of Liquor Making and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, China
Optimization On Dry-Cured Process Of Sansui Plasma Duck Of Guizhou, Gao Xiaohong, Wang Xiujun, Tian Duo
Food and Machinery
In order to improve the production technology system and the product quality. Using the Sansui duck as raw material, the effects of pre-cooking time, curing time, salt concentration and cooking wine concentration on the comprehensive quality of duck meat were studied, and the dry-cured process of Sansui plasma duck was optimize. The results showed that Sansui plasma duck optimum parameters of dry-cured process in were obtained: pre-cooking time 2.4 min, curing time 39.0 min, salt concentration 3.0% and cooking wine concentration of 2.9%. Under this condition, the duck meat has moisted surface, color goldenand uniform, special duck fragrance, and its …
Effects Of Oxygen Vectors On Microbial Production Of Avilamycin,
2018
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Shandong 255000, China; Key Laboratory of Technologies for Functional Agricultural Products in Universities of Shandong, Zibo, Shandong 255000, China
Effects Of Oxygen Vectors On Microbial Production Of Avilamycin, Zhang Mei, Song Yuanda, Liu Qing, Wang Youling, Wu Han
Food and Machinery
In order to improve oxygen delivery efficiency and dissolved oxygen levels for the production of avilamycin in the fermentation broth, the effects were studied, including the various oxygen carriers on the synthesis of avilamycin and the growth of Streptomyces viridochromogenes. The results showed that Tween-80 was the most effective vector to promote growth and the ability of Streptomyces viridochromogene to produce avilamycin.With the addition of 3 g/L tween at 8 h fermentation ,the biomass reached 11.82 g/L and the avilamycin titer increased to 340 mg/L, which was 20.63% and 21.42% higher than the control group. Result show that the oxygen …
Antioxidant And Uv-Induced Fibroblasts Photoaging Repair Effects Of Polyphenol From Cortex Mori,
2018
College of Life and Environment Science, Huangshan University, Huangshan, Anhui 245041, China
Antioxidant And Uv-Induced Fibroblasts Photoaging Repair Effects Of Polyphenol From Cortex Mori, Wu Yongxiang, Wu Liping, Wang Weidong, Kim Taewan
Food and Machinery
The antioxidant activity of polyphenol from Cortex Mori (CMP) was examined by 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assays. Fibroblasts HS68 cells were induced by ultraviolet (UV) irradiation to establish the photoaging model. Cell proliferation was investigated using a methyl thiazolyl tetrazolium (MTT) assay. The content of procollagen typeⅠprotein (PIP) in cells was measured by enzyme-linked immunosorbent assay (ELISA). The matrix metalloproteinase-1 (MMP-1) and PIP mRNA expressi-ons were detected by qRT-PCR. CMP exhibited significant antioxi-dant activity in ABTS, DPPH free radical scavenging assays, with IC50 values of 1.49, 8.94 μg/mL, respectively. The IC50 values of butyl …
Enhancement Of Docosahexaenoic Acid Production In Schizochytrium Sp. 31 Combining Ethylmethylsulfone And Atmospheric And Room Temperature Plasma Treatment,
2018
The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
Enhancement Of Docosahexaenoic Acid Production In Schizochytrium Sp. 31 Combining Ethylmethylsulfone And Atmospheric And Room Temperature Plasma Treatment, Zhao Ben, Wang Wu, Li Changling, Yang Hailin
Food and Machinery
For establishing an efficient and stable mutagenesis method on breeding Schizochytrium DHA higher producers, the wild-type strain named Schizochytrium sp. 31 was mutated combining Ethylmethylsulfone (EMS) and Atmospheric and Room Temperature Plasma (ARTP) treatment. Mutagenic efficiency, fermentation indexes of the mutants were compared and analyzed. Under this compound mutagenesis method, the positive mutation rate reached 32.2%, which was much higher than that under other two single-factor mutagenesis methods. Besides, DHA production and DHA percentage in total fatty acids reached to 7.2 g/L and 43.2%, which were 35.6% and 19.2% higher than that of the wild-type strain, respectively. After five rounds …
Determination Of 45 Elements In Yingde Black Tea By Icp-Ms,
2018
Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China; Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Institute of Analysis, Guangzhou, Guangdong 510070, China; Universi
Determination Of 45 Elements In Yingde Black Tea By Icp-Ms, Zhang Xiancai, Zhang Chunhua, Huang Xiaolan, Wu Huiqin
Food and Machinery
The inductively coupled plasma mass spectrometry (ICP-MS) combined with microwave digestion was employed in this study for the determination of forty five elements in Yingde black tea. The results showed that 45 elements had good linearity and correlation coefficients all greater than 0.999 5. The limits of detection (LODs) were ranged from 0.000 1 to 20.090 0 μg/L. The recovery rates were between 82.58% and 119.19% with the relative standard deviations (RSDs) of 0.20%～7.03%. The RSD of all the elements except Sb was 0.15%～9.14% in precision experiments. The method was validated by standard reference material (GBW10083), the determination values of …
Establishment Of Hplc Method For Anthocyanins Determination Of Purple Bud Tea Tree,
2018
Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128,China
Establishment Of Hplc Method For Anthocyanins Determination Of Purple Bud Tea Tree, Liu Lingfeng, Zhou Yang, Lin Ling, Xiao Wenjun, Gong Zhihua
Food and Machinery
The purple bud tea zijuan,zixuan9803,Hongyafoshou an An73 shoots were used as research objects. Using three plant anthocyanins as external standards,a HPLC method for simultanteous detection of various anthocyanins in purple bud tea tree was established. That is: after been extracted with 80% ethanol and refluxed, the tea is degreased with a volume ratio of 112 mixture of n-hexane:ethyl acetate:water. A C18 column was used with acetonitrile and 0.2% phosphoric acid ultra-pure water as the mobile phase. Gradient,the organic phase elution gradient: 0～55 min, 10%～40%, flow rate 0.8 mL/min, column temperature 30 ℃, detection wavelength 520 nm. Each anthocyanins can …
Particle Mixed Behavior Research Based On Dem,
2018
College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
Particle Mixed Behavior Research Based On Dem, Zhang Kaijie, Xu Qiang, Wang Tao
Food and Machinery
In order to study particle rotary motion behavior and its mixing effect, five kinds of different speeds and fitted the mathematical model of particle mixing data applying to EDEM and MATLAB were stimulatedwith the model of Rotary mixing equipment and based on the theory of DEM simulated the. The virtual experiments predicted the best speed. The results showed that the virtual experiments not only could research particle cyclotron motion characteristics of the curve distribution, but also the method of DEM was conducive to study the mixing mechanism. Compared with the five speeds, the degree of mixing was 62.27%, closed to …
Design And Experimental Research Of High Clearance Universal Operation Chassis,
2018
College of Engineering, Hunan Agricultural University, Changsha, Hunan 410128, China; Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, Hunan 410128, China
Design And Experimental Research Of High Clearance Universal Operation Chassis, Li Ze, Shi Yixin, Jiang Pin, Hu Wenwu, Lin Wei
Food and Machinery
A high ground clearance hydraulic four-wheel drive universal operation chassis was designed. Through the preliminary survey data, the initial target value of the design was established, the structure of the chassis and hydraulic system were designed. Combined with the target value of performance parameter, the type of walking pump and walking motor was determined, and the finite element analysis of steering leg and frame structure design were completed. Based on that, the chassis was passed through the performance analysis to determine the relationship between the wheelbase, and the structural parameters. Finally, the prototype was tested and the pass test was …
Study On The Application Of Glycerol Monlaurate Microemulsion In Shredded Squid,
2018
International Maritime College, Zhoushan, Zhejiang 316021, China
Study On The Application Of Glycerol Monlaurate Microemulsion In Shredded Squid, Zhu Yazhu, Weng Peifang, Jiang Huazhen
Food and Machinery
The application of the glycerol monolaurate (GML) and glycerol monlaurate microemulsion (ME) in squid processing was studied. Effects of amounts and methods of ME addition on the preservation of squid shreds were investigated with the total number of colonies and sensory evaluation as the main evaluation index. The results showed that the effective bacteriostatic amount of GML monomer and ME was 0.50% and 1.00% (equivalent to GML monomer 0.12%) , respectively, in the processing of shredded squid, and the addition of two times seasoning was better than one seasoning. However, when the addition amount of GML monomer was more than …
Effect Of Preparation Technology On Quality And Aroma Components Of Chill Seed Oil,
2018
Department of Food Science and Biotechnology, Tianjin Agriculture University, Tianjin 300384, China; Tianjin Engineering and Technology Research Center of Agricultural Products Processing, Tianjin 300384, China
Effect Of Preparation Technology On Quality And Aroma Components Of Chill Seed Oil, Zhen Runying, Shen Wenjiao, He Xinyi, Wang Haifeng, Liu Bin, Feng Changlu
Food and Machinery
The oxidation value, acid value, color, fatty acid composition, volatile substances were measured to choose the optimum process for the preparation of chilli seed oil. The effects of two kinds of methods, enzymatic hydrolysis-ethanol-assisted and normal-temperature extraction, on the quality and aroma components of chilli seed oil were compared. The results showed that the chilli seed oil obtained by two kinds of preparation methods was orange-yellow, the acid value was less than 4.0 mg/g, the peroxide value was less than 12 meq/kg. The capsaicin contents of chilli seed oil obtained by enzymatic hydrolysis-ethanol-assisted extraction and normal-temperature extraction were 1.46,and 0.54 …
Research Progress In Monosaccharide Detection By High Performance Liquid Chromatography,
2018
Northwest Minzu University, Lanzhou, Gansu 730030, China
Research Progress In Monosaccharide Detection By High Performance Liquid Chromatography, Saimaiti Reziwanguli, Chen Shien, Gao Dandan, Wu Zhongyong, Che Minna, Li Mingsheng
Food and Machinery
High performance liquid chromatography (HPLC) is one of the most important factors in monosaccharide analysis due to its simple operation, and high efficiency and sensitivity. In this study, several commonly used methods were described, for the analysis of monosaccharides by high performance liquid chromatography, i.e., liquid chromatography differential refractive index detection, liquid chromatography evaporative light scattering detection, PMP pre-column derivatization detection, para-aminobenzoic acid pre-column derivatization, the o-aminobenzoic acid derivative method and post-column derivatization method. Moreover, the advantages and disadvantages of these methods were demonstrated, and the sensitivity, operation method, and accuracy were compared and analyzed among these methods.
Preparation Of Low Lactose Milk With High Hydrolysis Rate And Analysis Of Sugar,
2018
College of Chemistry and Biology Engineering, Changsha University of Science and Technology, Changsha, Hunan 410076, China; College of Food and Chemistry Engineering, Shaoyang University, Shaoyang, Hunan 422000, China
Preparation Of Low Lactose Milk With High Hydrolysis Rate And Analysis Of Sugar, Wu Taoying, Cheng Yunhui, Zhao Liangzhong, Ouyang Lin, Xu Zhou
Food and Machinery
To determine the optimum conditions for the production of low lactose milk by enzyme method, the hydrolysis process of low lactose milk was optimized by the response surface method, with the hydrolysis rate of lactose as an index. The results were as follows: the ratio of enzyme to substrate (\[E\]/\[S\]) was 1.50‰, and the hydrolysis was undertaken at 38.15 ℃ for 3.0 h. Under these conditions, the lactose hydrolysis rate of low lactose milk was 92.67%. Moreover,14.02% of the oligosaccharides were detected by HPLC detection, which showed β-galactosidase could hydrolysis lactose and turn glycosidic.
Thomas, Norman (Fa 1129),
2018
Western Kentucky University
Thomas, Norman (Fa 1129), Manuscripts & Folklife Archives
Folklife Archives Finding Aids
Finding aid only for Folklife Archives Project 1129. Paper titled “Traditional Recipes” in which Norman Thomas details how to prepare various dishes ranging from opossum and porcupine to maple syrup and molasses taffy. Paper is based on information collected by Thomas from close relatives and family friends.
Isolation And Identification Of Microorganism Affecting Eating-Quality In Fermented Fresh Rice Noodle,
2018
School of Chemistry and Biology Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
Isolation And Identification Of Microorganism Affecting Eating-Quality In Fermented Fresh Rice Noodle, Chen Lanxuan, Yang Youwang, Zhou Hui, Tong Litao, Zhou Sumei, Yi Cuiping
Food and Machinery
Microorganism strains as the starter culture for the manufacture of fermented rice noodles were selected. A total of 41 yeasts and 60 lactic acid bacteria (LAB) were isolated from the traditional fermentation of rice noodles, and the enzymatic activities (catalase, β-glucosidase, lipase, α-amylase, proteolytic enzyme), growth under varied pH and temperatures, and acidification capability were characterized. Principal component analysis indicated that 11 isolates of yeast, and 19 isolates of LAB exhibited potential technological traits. After identification using internal transcribed spacer sequence for yeasts and 16S rRNA gene for LAB, the isolates were grouped into three yeast isolates and four LAB …
