Optimization On Extracting Process For Red Meat Pitaya Pigment Assisted With Enzymatic-Ultrasonic By Response Surface Methodology,
2019
College of Food Science and Technology, Hunan Agriculture University, Changsha, Hunan 410128, China
Optimization On Extracting Process For Red Meat Pitaya Pigment Assisted With Enzymatic-Ultrasonic By Response Surface Methodology, Tian Yan, Duan Xiaoyan, Deng Fangming
Food and Machinery
Using freeze-dried pitaya peel and pulp samples as raw materials, response surface methodology was used to optimize the cellulase-ultrasonic extraction process of pigment from pitaya peel and pulp. The optimal extraction process of pigment from pitaya pericarp was as followed: extraction time 24 min, extraction temperature 39 ℃, ultrasonic power 325 W, ethanol concentration 23%, the yield was (81.661 3±0.762 0) mg/100 g; The optimum extraction conditions of pigment from pitaya pulp were as follows: extraction time 34 min, extraction temperature 41 ℃, ultrasonic power 315 W, ethanol concentration 23%, and the yield was (278.660 4±1.084 2) mg/100 g.
Study On Physicochemical And Sensory Properties, Polyphenolic Composition And Antioxidant Capacity Of Matcha Tea Infusion,
2019
College of Food Engineering and Nutrition Science, Shaanxi Normal University, Xi’an, Shaanxi 710119, China; Shaanxi Engineering Laboratory for Food Green Processing and Security Control, Xi’an, Shaanxi 710119, China
Study On Physicochemical And Sensory Properties, Polyphenolic Composition And Antioxidant Capacity Of Matcha Tea Infusion, Zhang Qiqi, Cheng Junxia, Wang Qi, Wang Haopeng, Yang Na, Guo Juntong, Shao Hongjun
Food and Machinery
The physicochemical and sensory properties, polyphenolic composition, and antioxidant capacity of two kinds of matcha tea infusion were investigated in the present study. The results showed that the pH increased slightly, and the titratable acid content decreased dramatically from the first to the third brew. Meanwhile, the infusions of the first brew had optimal color and scent sensory quality compared with those of the second and third brews. Furthermore, the total polyphenol content, polyphenolic composition, and antioxidant capacity of tea infusions showed no significant difference between the two kinds of matcha tea, but all decreased to some degrees during the …
Study On Two-Stage Partial Block Freeze Concentration To Prepare High Content Apple Cider Vinegar,
2019
School of Physics and Mechanical & Electrical Engineering, Shaoguan University, Shaoguan, Guangdong 512005, China
Study On Two-Stage Partial Block Freeze Concentration To Prepare High Content Apple Cider Vinegar, Li Xiangqin, Zhong Ruimin, Men Geyang, Shan Bin, Liao Caihu, Zhong Pingjuan, Wu Lanjie, Huang Zuanyuan
Food and Machinery
Used the self-developed 50 L progressive partial block freeze concentration pilot equipment to concentrate the soluble solid content of 5.0 °Brix apple cider vinegar. By adjusting the stirring speed and the cold medium temperature, comprehensive energy consumption, time and other factors, explored the optimum technological conditions of the two-stage and recycle liquid entrainment effectively. And at the same time, used solid-phase micro extraction-gas chromatography mass spectrometry to explore the changes of aromatic substances in the difference of apple original vinegar, all levels of concentrated compound liquid, two-stage entrainment solution, entrainment recovery solution and ultimate entrainment. Results: The apple cider vinegar …
Study On The Suitability Of Fresh Tea Leaves From Different Teavarieties For Yellow Tea Processing,
2019
Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha
Study On The Suitability Of Fresh Tea Leaves From Different Teavarieties For Yellow Tea Processing, Song Yuxin, Zhu Jingjing, Zhang Tuo, Gong Zhihua, Xiao Wenjun
Food and Machinery
Taking the tea varieties of Bixiangzao, Jianbohuang and Taoyuandaye in summer with a bud and one leaf as raw materials, which were processed into yellow tea, respectively. The yellow tea suitability of three tea varieties was discussed via analyzing sensory quality, taste quality and aroma quality. The results showed that compared with Taoyuandaye and Bixiangzao, the fresh leaves of Jianbohuang were more suitable for processing yellow tea, and the yellow tea made from Jianbohuang had golden color in dried tea, delightfully fresh with sweetness, mellow and refreshing in taste, golden with light brightness in the color of tea soup and …
Cold Plasma Technology And Its Effect On The Food Quality And Microorganism,
2019
Grain and Oil Quality Supervision Center of Anhui-CGR, Hefei, Anhui 230041, China
Cold Plasma Technology And Its Effect On The Food Quality And Microorganism, Yang Xinwen, Niu Wenjun, Cheng Junhu, Wang Mansheng
Food and Machinery
This paper briefly described the development status, discharge mode, diagnosis and characterization of active components of cold plasma technology, and discussed the changes of macromolecules such as starch and protein structure in food systems and microbes inactivation in foods, which provides an important theoretical reference and new technical means for the regulation of food quality by cold plasma technology, and also provides theoretical support for the engineering application of this technology.
Research Advances Of Coolants In Tobacco,
2019
R&D Center of Yunnan Industrial of China Tobacco Industry Co., Ltd, Kunming, Yunnan 650231, China;Kunming University of Science and Technology, Kunming, Yunnan 650500, China
Research Advances Of Coolants In Tobacco, Wang Ziyan, Han Jingmei, Lei Ping, Mao Deshou, Ren Dabing, Yi Lunzhao, Tang Jianguo
Food and Machinery
In this paper, based on the research references on smoke coolants in recent years, based on its classification and synthesis methods, the paper summarizes the common analysis and detection methods of coolants in cigarettes and their effects on the safety of cigarette smoking, and the future smoke.
Research Progress Of Lactic Acid Bacteria Microcapsule Encapsulation Technology And Common Wall Materials,
2019
College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
Research Progress Of Lactic Acid Bacteria Microcapsule Encapsulation Technology And Common Wall Materials, Liu Renjie, Li Zhe, Mao Sining, Liang Shan, Zhao Yue, Wang Yuhua
Food and Machinery
Improving the survival rate of lactic acid bacteria in human gastrointestinal tract, the article outlines the definition and development history of microcapsule encapsulation technology, and the commonly used and new microcapsule encapsulation technology. The advantages and disadvantages of interfacial polymerization, phase separation, spray drying, extrusion and high-pressure electrostatic spray drying methods were analyzed. The method of lactic acid bacteria encapsulation was discussed with the common wall materials of lactic acid microcapsules. Combined with the common wall materials of lactic acid bacteria microcapsules, the lactic acid bacteria encapsulation method was discussed, and the effects of compound encapsulation, multi-layer encapsulation and prebiotic …
Application Of Heat Pipe-Heat Pump And Infrared-Heat Pump In Agricultural Product Processing,
2019
Energy and Architectural Engineering Institute, Harbin University ofCommerce, Harbin, Heilongjiang 150028, China
Application Of Heat Pipe-Heat Pump And Infrared-Heat Pump In Agricultural Product Processing, Li Xiaoyan, Qiang Qiuqiu, Fan Bowei, Fu Jian, Zhao Yifan, Zhang Lihong
Food and Machinery
This paper reviews the research progress of heat pipe-heat pump and infrared-heat pump dry agricultural products with the advantages of short time, good quality and energy saving. The drying efficiency and drying quality change in the drying process are analyzed. The problems of heat pipe-heat pump drying technology and infrared-heat pump drying technology are summarized, which provides new ideas for optimizing dry agricultural products.
The Healthy Benefits And Applications Of Red Rice,
2019
School of Food Science and Technology of Jiangnan University, Wuxi, Jiangsu 214122, China
The Healthy Benefits And Applications Of Red Rice, Wang Li, Zhu Fan, Wang Fawen, Li Yan, Qian Haifeng, Zhang Hui, Qi Xiguang
Food and Machinery
Red rice contains proteins, amino acids, vitamins, trace elements, and some biological active ingredients. Recently, its health benefits had been reported, including lowering blood glucose and total cholesterol level, antioxidant ability, antitumor activity, and so on. This review summarized the nutrients, health benefits and comprehensive utilization of red rice.
Discussion On The Integrated Development Of Chinese Medicine Diet And Foods For Special Dietary Industry,
2019
School of Humanities and Management, Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
Discussion On The Integrated Development Of Chinese Medicine Diet And Foods For Special Dietary Industry, Li Ling, Xia Xinbin, Zhou Liangrong
Food and Machinery
Chinese medical diet, like foods for special dietary uses, can provide special or targeted physiological substances and nutrients for specific groups with scientific methods, so as to improve the basic nutrition metabolism of specific groups and reduce unnecessary metabolic burden .This article suggests that the traditional Chinese medicine diet with national characteristics and a long history should be integrated with the special diet food industry, so as to promote the rapid growth of the special diet industry with Chinese characteristics and enhance the international competitiveness of China's special diet food.
Determination Of 72 Antibiotics Residues In Raw Milk By Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry,
2019
Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China; National Quality Supervision and Inspection Center for Food Products, Shanghai 200233, China
Determination Of 72 Antibiotics Residues In Raw Milk By Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry, Wang Chengping, Qin Yu, Hou Beibei, Lei Tao, Yu Chenghua, Ge Yu
Food and Machinery
The pretreatment method of antibiotic residues in fresh milk was established and optimized. At the same time, 72 kinds of compounds were effectively extracted and purified, and analyzed by ultra performance liquid chromatography-tandem mass spectrometry. In this paper, the effects of different extraction solvents and purification methods on the recovery rate of the target were investigated and the conditions were optimized. 72 antibiotics were linearly good in the range 1.0䥺[email protected] μg/L. The LOD of the five compounds was 10.0 μg/kg, the LOD of the 15 compounds was 5.0 μg/kg, and the LOD of the remaining 52 compounds was no more …
Hplc Analysis Of Flavonoids In Apocynumvenetum Tea And Its Antioxidation In Vitro,
2019
Environment and Quality Inspection College, Chongqing Chemical Industry Vocational College, Chongqing 401228, China
Hplc Analysis Of Flavonoids In Apocynumvenetum Tea And Its Antioxidation In Vitro, Zhang Jing, Ren Xiaoli, Li Xixi, Yi Sha, Li Chong, Zhao Xin
Food and Machinery
In this study, the contents of rutin and isoquercetin in flavonoids of Apocynumvenetum tea was determined by high performance liquid chromatography (HPLC), and the antioxidant effect in vitro was evaluated. A good separation of rutin and isoquercetin from flavonoids of Apocynumvenetum tea was achieved by vacuum heating reflux combined with macroporous adsorption. Rutin and isoquercetin were separated effectively in the extract of Apocynum venetum teaflavonoids. The results showed good linear relationship, the range of rutin was 0.453 1~9.062 5 μg (r=0.999 55) and that of isoquercetin ranged from 0.258 3 to 5.166 5 μg (r=0.999 65). The recoveries of rutin …
Recognition Of Plant Diseases And Insect Pests In Potato Based On Machine Vision Image Extraction,
2019
Shijiazhuang University of Applied Technology, Shijiazhuang, Hebei 050081, China
Recognition Of Plant Diseases And Insect Pests In Potato Based On Machine Vision Image Extraction, Wang Yi
Food and Machinery
In order to improve the detection and recognition ability of potato internal diseases and insect pests, image visual feature recognition method was used to detect potato diseases and insect pests, and a method of potato internal diseases and insect pests feature recognition based on machine vision image was proposed. A two-dimensional visual image acquisition model of potato internal diseases and insect pests was constructed, and the visual images of potato internal diseases and insect pests were detected by block fusion, and the characteristics of diseases and insect pests were detected according to the distribution of potato green leafin texture. The …
Study On Antioxidant Components And Antioxidant Activities Of Peels Extracts From Sweet Orange In Hunan Province,
2019
Hunan Key Laboratory of Processed Food for Special Medical Purpose, Changsha, Hunan 410004, China; College of Food Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan 410004, China
Study On Antioxidant Components And Antioxidant Activities Of Peels Extracts From Sweet Orange In Hunan Province, Li Juan, Niu Zeyu, Yue Xiangqi, Xie Xuan, Fu Xinjing, Lu Jun
Food and Machinery
Eight kinds of sweet orange peels extracts were investigated to compare their antioxidant active ingredients and antioxidant capacity. The results showed that the highest level of the content of polyphenols, flavonoids, tannins and vitamin C were found in Mayang Bingtang sweet orange peel extracts, which reached 7.60 mg gallic acid equivalent (GAE)/per gram dried sample (g·md), 4.57 mg rutin equivalent (RE)/g·md, 17.90 tannin (TAE) mg/g·md, 17.86 mg vitamin c (VC)/g·md, respectively. Meanwhile, Mayang Bingtang orange peel also showed the highest ferric reducing power (81.50±0.93 μmol Trolox equivalent (TE)/g·md), and very …
Research Progress On The Effects Of Ozone Treatment On The Structuraland Processing Characteristics Of Food Starches,
2019
College of Food Science, Southwest University, Chongqing 400715, China
Research Progress On The Effects Of Ozone Treatment On The Structuraland Processing Characteristics Of Food Starches, Xia Rui, Liu Lijun, Cao Mengling, Zhao Guohua, Ye Fayin
Food and Machinery
This review introduces the chemical properties of ozone and the ways of starch ozonation, and then summarizes the effects of ozone treatment on the molecular structure, granular characteristics and processing properties of the starches. The factors effecting the starch ozonation are also reviewed. Further research directions on utilizing ozone reasonably to improve the starch functionalities are also suggested.
Correlation Of The Water-Interacting Property Of Dietary Fiber Powder With Its Composition And Particle Structure,
2019
College of Food Science, Southwest University, Chongqing 400715, China
Correlation Of The Water-Interacting Property Of Dietary Fiber Powder With Its Composition And Particle Structure, Tao Jianming, Yan Caizhi, Zhao Guohua
Food and Machinery
As one of the most important physicochemical properties of dietary fiber powders, the water-interacting property is closely related to their technological properties and physiological functions in the food system. However, systematic research is unavailable on the relationship between the water-interacting properties and the composition and particle structure of dietary fiber powders. Therefore, the water-interacting properties of dietary fiber powder and these dependence on composition and particle structure by correlation analysis were investigated, based on the determinations of the hydration properties (water holding capacity, swelling capacity), hygroscopicities (initial absorption rate, absorption time, maximum absorption rate), dietary fiber contents (total dietary fiber, …
Inhibition Of Punicalagin On The Expression Of Virulence Factors Of Staphylococcus Aureus,
2019
College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China; College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
Inhibition Of Punicalagin On The Expression Of Virulence Factors Of Staphylococcus Aureus, Xu Yunfeng, Wu Qian, Fan Qiuxia, Wang Xin, Xia Xiaodong
Food and Machinery
Hemolysis test, coagulase titer assay, and enzyme-linked immunoreaction method were used to detect the expression changes of hemolysin, plasma coagulase, and total enterotoxins after treating with punicalagin. Reverse transcription real-time fluorescence quantitative PCR was used to detect the expression of virulence-related genes. The results showed that punicalagin could significantly reduce the production of α-hemolysin, but the inhibition effect was not concentration-dependent. At the concentrations of higher than 1/4 MIC, punicalagin could decrease the expression of plasma coagulase. At the concentrations of higher than 1/2 MIC, punicalagin significantly reduced the production of total enterotoxins. Punicalagin also significantly reduced the transcription of …
Isolation, Identification And Tolerance To Simulated Gastrointestinal Environment Of Lactococcus Lactis From Soy Sauce Residue,
2019
College of Food Science and Engineering, Foshan University, Foshan, Guangdong 528231, China; Guangdong Engineering Reseach Center for Traditional Fermentational Food, Foshan, Guangdong 528231, China; Guangdong Engineering Reseach Center for Safety Control
Isolation, Identification And Tolerance To Simulated Gastrointestinal Environment Of Lactococcus Lactis From Soy Sauce Residue, Huang Guidong, Tang Suting, Cheng Yunhui, Sun Zhangle, Chen Ziqi, Jiao Ye, Zhang Can, Zhong Xianfeng
Food and Machinery
In order to enrich lactic acid bacteria resource from soy sauce residue, Lactococcus lactis from soy sauce residue were screened and identified by physiological and biochemical tests and 16S rRNA gene sequence analysis, and their tolerance to gastrointestinal environment were further studied. Four strains of lactic acid bacteria were isolated from soy sauce residue. Three of them were identified as Lactococcus lactis subsp. hordniae, HT127, HT223 and HT227, respectively. One was identified as Lactococcus lactis subsp. lactis and named HT122. The results of growth curve showed that the growth of four strains were similar, and the logarithmic growth period was …
Preparation And Structural Characterization Of Silkworm Pupa Peptides Chelated Calcium,
2019
Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510610, China; Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, China; Key Laboratory of Functional Food
Preparation And Structural Characterization Of Silkworm Pupa Peptides Chelated Calcium, Zhao Ziyue, Wang Siyuan, Liao Sentai, Mu Lixia, Zou Yuxiao
Food and Machinery
Preparation of peptides chelated calcium from silkworm pupa peptides, taking the soluble calcium content as the main index, and considering the chelation and yield rate, the effects of reaction pH, temperature, time, and peptide-calcium ratio were examined. On the basis of single factor experiment, Box-Behnken central composite design was utilized, and the optimal conditions were as followed: reaction time 80 min, reaction temperature 73 ℃, pH 10, peptide calcium ratio 3.4∶1.0. Under this condition, the soluble calcium content of the silkworm pupa peptide chelated calcium was 14.51%. Through the UV absorption and infrared spectroscopy and SEM analysis, it showed that …
Effect Of The Heater Temperature On The Aroma Components Of Finished Tobacco,
2019
Technology Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming, Yunnan 650024, China
Effect Of The Heater Temperature On The Aroma Components Of Finished Tobacco, Li Chao, Yuan Xiangyun, Li Da, Ge Wen, Wang Jiashou
Food and Machinery
Head space solid-phase microextraction (HS-SPME) coupled with chromatography-mass spectrometry (GC-MS) method was developed to study the effects of different tempera-ture of the heater on the composition and content of aroma components in the test samples of different batches of cigarettes. The results were as follows: ① A total of 35 core aroma components were detected in two batches of finished cut tobacco, of which batches X and Y contained 30 and 34 kinds respectively; ② 3-methyl-3-buten-2-one, 2-hexene-1-alcohol, 2-(butoxyethoxy)ethanol, Methyl palmitate and 3,5-dimethylphenol were undetected components in X, while 3-methyl-1,2-cyclopentadione was undetected components in Y. 1,2-propanediol was the highest content of …
