Study On Extraction Of Essential Oil From Lysimachia Foenum-Graecum Hance And Its Preservation Effect On Longan,
2016
Department of Chemistry and Biological Engineering, Hunan University of Science and Engineering, Yongzhou, Hunan 425199, China; Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, Yongzhou, Hunan 425199, China
Study On Extraction Of Essential Oil From Lysimachia Foenum-Graecum Hance And Its Preservation Effect On Longan, Yan Xuyu, Li Ling, Chen Ting, Wu Yuanjiao
Food and Machinery
Essential oil was extracted from Lysimachia foenum-graecum Hance using steam distillation method. The extraction conditions of essential oil were optimized by orthogonal experimental design, and its preservation on longan was studied. The results showed that the optimum extraction technology were: the concentration of sodium chloride 4%, the distilling time was 6 h, and the solid-liquid ratio of 1∶10 (g/mL). Under the condition, the extraction rate of essential oil reached 0.167 2%. The preservation results indicated: the antibacterial effects of 4 treatments, the content of Vitamin C and soluble solid decreased gradually, and weight loss and corruption rate of longan increased …
Effect Of Hemp Seed And Algae Oils Preparation On Blood Lipid-Lowering And Antioxidant Activities For Mixed Hyperlipidemia Rats,
2016
Hubei Provincial Traditional Chinese Medicine Hospital, Wuhan, Hubei 430074, China
Effect Of Hemp Seed And Algae Oils Preparation On Blood Lipid-Lowering And Antioxidant Activities For Mixed Hyperlipidemia Rats, Bai Chuanming, Li Li
Food and Machinery
Objective: The effects of hemp seed and algae oils preparation on blood lipid-lowering and antioxidant activity of mixed hyperlipidemia rats were investigated in this study. 50 rats were randomly divided into 5 groups, i.e., the blank control group, model control group, hemp seed oil and algal oil preparation low dose group (170 mg/kg), medium dose group (340 mg/kg) and high dose group (510 mg/kg). Then their weights of , testis fat pad and perirenal fat pad, fat body ratio, and the activities of malondialdehyde (MDA), glutathione (GSH) and superoxide dismutase (SOD) were measured after feeding high fat diet and corresponding …
The Conditions And Methods Of Low Temperature Grain-Storage Technology With Solar Adsorption Refrigeration System,
2016
Shijiazhuang Institute of Railway Technology, Shijiazhuang, Hebei 050041, China
The Conditions And Methods Of Low Temperature Grain-Storage Technology With Solar Adsorption Refrigeration System, Feng Bo
Food and Machinery
In this study, solar powered adsorption refrigeration system was investigated to study its application in storage at low temperature, and the thermal performance of the system has been tested and analyzed. The results showed that at the high temperature in summer season, when the solar refrigeration system was cooled at 12:00~13:00, the solar thermal collector surface radiation intensity is about 3.0 MJ/(m2·d), and the refrigeration power system is about 3.9 kW distribution according to time. Moreover, the it was found that cooling power and low temperature storage required cooling capacity in general. Under the condition of solar radiation …
Study On Irradiation Sterilization And Dose Of Semi-Finished Micropterus Salmoides,
2016
Institute for Farm Products Processing and Nuclear-Agricultural Technology, HuBei Academy of Agricultural Sciences, Wuhan, Hubei 430064, China
Study On Irradiation Sterilization And Dose Of Semi-Finished Micropterus Salmoides, Wang Weiqiong, Xiong Guangquan, Chen Yuxia, Bai Chan, Li Hailan, Zu Xiaoyan
Food and Machinery
In order to regulate the technical conditions of irradiation sterilization for semi-finished Micropterus salmoides (SFMS), we investigated the impacts of irradiation on the microbe quantity, pH value, water holding capacity, color value and volatile components of it in this study, by using different doses ranging from 0.00 to 8.74 kGy of 60Co gamma ray irradiation. The results showed that, with the irradiation of 3.25 kGy, the total bacteria decreased to 10 CFU/g. Moreover, the total bacteria decreased to 250 CFU/g and 10 CFU/g, at the D10 value of 1.54 kGy and 3.64 kGy, respectively. At the range of …
Supercritical Co2 Extraction Of Idesia Polycarpa Oil And Analysis Of Its Fatty Acid Composition,
2016
College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Supercritical Co2 Extraction Of Idesia Polycarpa Oil And Analysis Of Its Fatty Acid Composition, Kuang Chuntao, Wu Bin, Tang Hongwei, Xiang Shu, He Jianyang
Food and Machinery
To make full use of Idesia polycarpa resource, the optimum conditions of extracting oil in I. Polycarpa by supercritical CO2 were studied by single factor and Box- Behnken designs, and the fatty acid composition of this oil was analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that the yield of the oil in I. polycarpa extracted by supercritical CO2 was (38.25±0.41)%, when extracted at 24 MPa and 53 ℃ for 147 min. Moreover, the regression model between yield and influence factors was very significant (P=0.000 9). In addition, the results of GC-MS showed that the total content …
Simultaneous Detection Of Puffiness And Soluble Solids Content For Intact Citrus By Online Spectroscopy,
2016
School of Mechatronics Engineering, Eash China Jiaotong University, Nanchang, Jiangxi 330013, China
Simultaneous Detection Of Puffiness And Soluble Solids Content For Intact Citrus By Online Spectroscopy, Liu Yande, Wu Mingming, Sun Xudong, Zhu Danning
Food and Machinery
Puffy fruit and soluble solid content (SSC) are important indexes for evaluating the quality of citrus. The feasibility was discussed for detecting Puffing disease and SSC of intact citrus simultaneously by online visible-near infrared (visible-NIR) transmittance spectroscopy. The spectra were recorded with the integration time of 100 ms in the wavelength range of 350~1 150 nm when the samples were conveyed at the speed of five samples per second. The feasibility of simultaneous and online detection of puffiness fruit and SSC for intact citrus simultaneously was discussed by visible-near infrared transmittance spectroscopy. The response properties of visible-NIR spectra for normal …
Effect Of Different Solvents On Total Phenolic Content, Total Flavonoid Content And Antioxidant Activity Of Highland Barley,
2016
Department of Food Science and Engineering, Jinan University, Guangzhou, Guangdong 510632, China
Effect Of Different Solvents On Total Phenolic Content, Total Flavonoid Content And Antioxidant Activity Of Highland Barley, Shne Yingbin, Zhang Youwei, Huang Caihuan, Chen Yongsheng, Wang Li, Ou Shiyi, Zhang Hui
Food and Machinery
The objectives of this study were to evaluate total phenolic, total flavonoid content and antioxidant activities of different extraction from three kinds of highland barley. The results showed that 95% ethanol and 60%acetone were better to extract phenolic compounds than other solvents. Total phenolic and total flavonoid contents, antioxidant activities of Zangqing 2000 using different solvents were higher than that of Xunhua and Shangri-la highland barley. Meanwhile, the highest total phenolic content of Zangqing 2000 was 211.92 mg GAE/100 g DW in 60% acetone, the highest total flavonoid content of Zangqing 2000 was 60.11 mg RT/100 g DW in 60% …
Effect Of Handling Cattle In Different Platform Slope On Beef Quality,
2016
College of Animal Science and Technology, Hebei North University, Zhangjiakou, Hebei 075000, China
Effect Of Handling Cattle In Different Platform Slope On Beef Quality, Guo Bing, Wang Haifeng
Food and Machinery
In order to investigate the beef quality changes under handling cattle in different platform slope, Twenty simon tal beef cattle were randomly divided into 4 groups, the cow is respectively loading and unloading through (30,40,50 °) slope, then cattle are slaughtered. The pH value, flesh-colored, drip loss percentage, cooking loss percentage and shear force of postmortem beef were measured respectively. Results showed, with the increase of loading platform slope, pH values, L* value and a* value of postmortem beef significantly decreased (P<0.05), while shear force, b* value, drip loss and cooking loss of postmortem beef significantly increased (P<0.05). This study indicated that beef quality was better through handling cattle in 30 degrees platform slope, and it should be reduced platform slope in cattle actual production thereby improve beef quality.
Study On Extraction Of Honeysuckle Polysaccharide By Internal Boiling Method,
2016
College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan 641100, China; Key Laboratory of Fruit Waste Treatment and Resource Recycling of Sichuan Provincial College, Neijiang, Sichuan 641100, China
Study On Extraction Of Honeysuckle Polysaccharide By Internal Boiling Method, Li Jianfeng, Li Chen, Liao Limin
Food and Machinery
The internal boiling method was adopted to extract polysaccharides from honeysuckle. The effects of ethanol concentration, extraction temperature and time, and water-solid ratio on the extraction rate of polysaccharides were discussed. The results showed that the extraction rate of polysaccharide reached 12.89%, when the ethanol concentration (v/v) was 20%, with water-soild ratio was 30∶1 (mL/g), at 95 ℃ for 5 min.
Research On The Alcohol Precipitation And Purification Treatment On Tobacco Extracting Solution Of Reconstituted Tobacco By Paper-Making Process,
2016
Institute for Applied Research of Yellow Crane Tower Reconstituted Tobacco, Technology Center of China Tobacco Hubei Industrial Co., Ltd, Wuhan, Hubei 430040, China
Research On The Alcohol Precipitation And Purification Treatment On Tobacco Extracting Solution Of Reconstituted Tobacco By Paper-Making Process, Huang Ming, Yao Jianwu, Yao Yuanjun, Tang Xiangbing
Food and Machinery
A method for papermaking reengineering qualitative alcohol sink tobacco leaf tobacco extract purification processing method was proposed in this study. Tobacco extract was precipited by 95% ethanol after pre-concentration treatment, and then it was centrifuged to remove the impurities, and macromolecular substances without favoring the sensory quality, such as protein and pectin. Moreover, the pre-concentration of solid content was also examined, including the alcohol concentration, alcohol sink factors, and sink time extract, influencing of sensory quality. The results showed that the papermaking method reconstruction tobacco leaf tobacco extract pre-concentration to solid content was 20%, 40% to 95% of the pre-concentrate …
Investigation And Analysis Of Consumption Characteristics And Trend Of Dietary Supplement For The Elderly Person,
2016
School of Public Administration, Central South University, Changsha, Hunan 410083, China
Investigation And Analysis Of Consumption Characteristics And Trend Of Dietary Supplement For The Elderly Person, Che Wenhui, Peng Shuangshuang
Food and Machinery
Through the survey of dietary supplement consumption on 123 elderly people in Yuelu District of Changsha City, showed that the aged person holds reasonable attitude to consume dietary supplement. They are seriously taking care about their health conditions; incline to get the dietary supplement from pharmacy or specialty stores. They always take the affectivity to first consideration when they make choose. While the dietary supplement attracts younger consumers with ordinary income. Such consumers mostly have reasonable opinions to choose the products and recognize the risks in them. Analyzed the significant factors influencing the dietary supplement consumption in aged group, and …
Study On Centrifugal And Freeze Drying Of Lactobacillus Plantarum Lp-S2 Dvs,
2016
Harbin University of Commerce, Harbin, Heilongjiang 150076, China
Study On Centrifugal And Freeze Drying Of Lactobacillus Plantarum Lp-S2 Dvs, Sui Chunguang, Liang Jinzhong, Wang Fengqing
Food and Machinery
Lactobacillus plantarum Lp-S2 which has the ability to produce gamma-aminobutyric acid, was used as starting strain to develop Direct vat set(DVS). Then the centrifugation process and freeze-drying process were optimized. By orthogonal experiment the optimal conditions of centrifugation were identified as: centrifugal temperature 4 ℃, Time-consuming 30 minutes, centrifugal force 6 000 r/min. In this condition, the centrifugal recovery rate of Lactobacillus Lp-S2 is 83.8%. The cryoprotectant was optimized by single factor and orthogonal test. The best combination of cryoprotectants was 15% trehalose, 15% glucose and 10% skim milk powder. The survival rate of L. plantarum Lp-S2 Direct Vat Set …
Effects Of Temperature And Thickness On Quality Of Tiegun Yam By Microwave Drying,
2016
Jiangnan University,Wuxi, Jiangsu 214122, China; Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214122, China
Effects Of Temperature And Thickness On Quality Of Tiegun Yam By Microwave Drying, Xu Wanxiu, Li Zhenfeng, Li Jing, Song Feihu
Food and Machinery
Slices of tiegun yam were dried at different temperature and thickness without any chemical preservatives added. To dry the slices with constant temperature, optical fiber was used to detect the center temperature of the slices. As the material, fresh tiegun yam was dried by single factor experiment. To evaluate the drying parameters, polysaccharide was extracted by soxhlet extraction and phenol sulfuric acid colorimetry was used to determine polysaccharide e yield of the samples. Besides, weight was online recorded with microwave drying system. Moreover, the sample color was measured with controlling different temperature of material and constant thickness of 5 mm, …
Preparation Of Microcapsules Made Of The Oil From Litsea Cubeba By Spray Drying Method,
2016
College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan 410004, China; National Engineering Laboratory for Rice and Byproducts Processing, Changsha, Hunan 410004, China
Preparation Of Microcapsules Made Of The Oil From Litsea Cubeba By Spray Drying Method, Fu Hongjun, Peng Xianglian, Zhong Haiyan
Food and Machinery
Litsea cubeba oil microcapsule were prepared by spray drying method. The effect of several shell materials on emulsion stability and surface morphology of microcapsule was investigated, and process conditions of Litsea cubeba oil microcapsule were optimized. The results of scanning electronic microscope (SEM) showed that Litsea cubeba oil microcapsule prepared with hydroxypropyl-β-cyclodextrin/ arabic gum(HP-β-CD/AG) as wall material is similar to smooth spheres with uniform size and good fluidity, and dents, wrinkles and aggregation for microcapsules prepared with other wall materials were observed. The embedding rate of Litsea cubeba oil in microcapsule was 83.80% under optimum conditions of WHP-β-CD/AG:W …
Research Advance On Antioxidant Active Composition And Antioxidant Mechanisms Of Edible Fungi,
2016
College of Food Science, Southwest University, Chongqing 400715, China
Research Advance On Antioxidant Active Composition And Antioxidant Mechanisms Of Edible Fungi, Xiao Xingning, Yuan Ya, Liao Xia, Wang Liying, Shi Fang, Ming Jian
Food and Machinery
Edible fungi are tasty as well as full of all kinds of biological activity, and the antioxidation is one of the most important activities among them. Polysaccharides, polyphenols, terpenoids,and selenium are the major antioxidants of edible fungi. In this paper, it was reviewed the research advance of antioxidant substances and the antioxidant mechanism of edible fungi, and the future research direction was also summarized, aiming to develop and utilize edible and medicinal values of the polysaccharides in the futher, and improve its application in the fields of food and medicine.
Effects Of Different Browning Inhibitors On Color Preservation Of Dried Banana Slices,
2016
College of Food Science, Southwest University, Chongqing 400715, China
Effects Of Different Browning Inhibitors On Color Preservation Of Dried Banana Slices, Bi Jiayu, Dai Yaoyi, Zheng Jiong
Food and Machinery
In order to improve the color quality of dried banana slices and obtain the best color protecting method, the effects of five different colors protecting agents, i.e. phytic acid, ascorbic acid, sodium chloride, EDTA and citric acid, on the color quality of dried banana slices evaluating were studied, by detecting the L* value and browning degree. The results showed that the order of the effects was phytic acid > citric acid > EDTA > sodium chloride > ascorbic acid. Moreover, it was also found that a better color quality of dried banana slices could be obtained through soking the slices in the color …
Purification Of Total Polyphenols In Polygonum Capitation By Macroporous Adsorption Resins,
2016
School of Chemistry and Materal Science, Guizhou Normal University, Guiyang, Guizhou 550001, China
Purification Of Total Polyphenols In Polygonum Capitation By Macroporous Adsorption Resins, Li Xiaobin, Gu Manqi, Zheng Kuiling, Wei Gang, Liao Liling
Food and Machinery
The total content of polyphenols in polygonum captitatum was determined by Folin-Cioculteu colorimetry. 10 types of macroporous resins were tested by static adsorption and desorption experiments for purifying polyphenols in polygogum captitatum and purifying conditions by the best resin were investigated. The results showed that HPD-722 was the best resin. Purifying conditions were as follows: concentration of adcorption sample 2.0～4.5 mg/mL, 2 BV/h adsoption velocity, 7.5 BV 50% ethanol solution as eluent, the content of the total polyphenol sample was up to 59.02%.
Study On Industrial Cogeneration Technology Of Hesperidin And Synephrine In Fructus Aurantii Immaturus,
2016
Agriculture Products Processing Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, China
Study On Industrial Cogeneration Technology Of Hesperidin And Synephrine In Fructus Aurantii Immaturus, Zhang Juhua, Yang Rongwen, Liu Wei, Shan Yang, Li Zhijian
Food and Machinery
In order to improve comprehensive utilization value of Fructus aurantii immaturus, based on existing extraction process of Fructus aurantii Immaturus, cogeneration technology of hesperidin and synephrine in Fructus aurantii Immaturus was presented. HPLC method for determination of hesperidin and synephrine were used, Fructus aurantii Immaturus was crushed and extracted by pH 0.3 Hydrochloric acid solution, the filtrate use Dowex 50(H+) strong acid cation to exchange, through vacuum concentration to get synephrine; while using alkali extracting the residue, after acid precipitation and vacuum drying process to obtain hesperidin, the cogeneration technical parameters were optimized, and 16 repeated trials were condcted. With …
Development And Flavor Substances Analysis Of Purple Sweet Potato And Bitter Buckwheat Combined Vinegar Beverage,
2016
College of Food Science, Sichuan Agricultural University, Ya’an, Sichuan 625014, China
Development And Flavor Substances Analysis Of Purple Sweet Potato And Bitter Buckwheat Combined Vinegar Beverage, Liu Mingyu, Chen Limin, Wang Sidan, Deng Weiqin, Liu Shuliang
Food and Machinery
A vinegar beverage combined with purple sweet potato and bitter buckwheat was developed, and the flavor compounds in it were analyzed. Purple sweet potato and buckwheat were processed through smashing, size mixing, saccharification, alcoholic fermentation and acetic fermentation to produce brew purple sweet potato and buckwheat vinegar, respectively.. The optimum formula of the vinegar beverage was obtained through single factor and orthogonal experiments. The 100 mL optimum complex contained 4 mL purple potato vinegar stock solution, 4 mL buckwheat vinegar stock solution,4 g saccharose, and 4 g fructose-glucose syrup. The vinegar beverage prepared under this condition had a unique purple …
Optimization Ofcorn Steep Liquor Medium For Trehalose Synthase Gene Engineering Bacteria By Response Surface Methodology,
2016
College of Chemistry and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
Optimization Ofcorn Steep Liquor Medium For Trehalose Synthase Gene Engineering Bacteria By Response Surface Methodology, Jiang Bo, Xie Ding, Zheng Ruina, Yang Qianyuan, Xie Yanping, Sheng Ming
Food and Machinery
Corn steep liquor was used as the sole carbon and nitrogen source for recombinant E. coli culture medium. Based on the single factor optimization, three factors of corn steep liquor, MgSO4 and trace elements were chosen to design the response surface of corn steep liquor medium components. With Box-Behnhen experimental design and response surface analysis, the optimum components of corn steep liquor medium were determined. The results showed that the optimum medium components were 26 g/L for corn steep liquor, 2.1 g/L for MgSO4 and 7 mL/L for trace elements. Under these conditions, the activity of trehalose synthase …
