The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products,
2022
Yantai Engineering & Technology College, Yantai, Shandong 264006 , China
The Effect Of Hygroscopicity On Quality Characteristics Of Different Freeze-Drying Fruit And Vegetable Products, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou, Li Xing-Xia, Li Yue, Yang Fei-Fei, Hu Jia-Qi, Zhang Hong-Lin, Wang Hai-Ou
Food and Machinery
Objective: This study aimed to explore the changes of hygroscopicity and quality characteristics of different freeze-dried (FD) fruits and vegetables in the storage.Methods: Taking four kinds of fruits and vegetables, including potato, king oyster mushroom, apple and white radish, as the research objects, the changes of microstructure, hygroscopicity, color and texture characteristics of the four kinds of freeze-dried fruits and vegetables were observed, and the correlation analysis was conducted.Results: The results showed that the cell structure of fresh fruits and vegetables was plump and regular; The FD apple slices was observed with relatively complete tissue structure, thicker cell …
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum,
2022
College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300392 , China
Optimization Of The Biotransformation Process Pumpkin Polysaccharide By Using Lactobacillus Plantarum, Li Xiao-Jie, Guo Yi, Ma Qing, Wang Pu, Xiao Ping
Food and Machinery
Objective: This study aimed to improve the technological conditions of antioxidant activity of pumpkin polysaccharide. Methods:The effects of temperature, pumpkin powder/distilled water ratio of solid to liquid, inoculation amount and shaking speed on the extraction rate of bio-transformed pumpkin polysaccharide were investigated, and the scavenging ability of pumpkin polysaccharide on DPPH free radical was studied. Results:The optimal conditions were inoculation amount 1% and solid-liquid ratio 1∶30 (g/mL), with shaking speed of 100 r/min at 37 ℃. Under the control of these conditions, the scavenging rate of DPPH free radical was (54.61±1.58)%. The in vitro antioxidant activity of the …
Preparation Of Pueraria Hypotensive Tea By Fermentation And Its Hypertensive Effect On Spontaneously Hypertensive Rats,
2022
College of Food Science and Engineering, Northwest A & F University, Xianyang, Shaanxi 712100 , China
Preparation Of Pueraria Hypotensive Tea By Fermentation And Its Hypertensive Effect On Spontaneously Hypertensive Rats, Liu Lu, Yuan Ya-Hong, Yue Tian-Li
Food and Machinery
Objective: This study aimed to obtain a novel fermented green tea with high ACE-inhibitory activity by Eurotium cristatum and to investigate its acute hypotensive effects on spontaneously hypertensive rats (SHR). Methods: The effects of pueraria addition, water content of substrate and spore suspension on ACE-inhibitory activity in vitro were investigated, and the fermentation process was optimized by orthogonal design experiment. The fermented tea solution was prepared by water extraction method, and SHR model was selected to study the hypotensive effect of fermented tea. Results: The optimal fermentation process for fermented tea was as follows: adding 2 g pueraria into 20 …
Research Progress On Storage And Processing Of Post-Harvest Daylily,
2022
College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi 030800 , China
Research Progress On Storage And Processing Of Post-Harvest Daylily, Chen Le, Zhao Chao-Fan, Liu Ya-Ping, Wang Yu, Zhang Li-Xin
Food and Machinery
The basic nutrition components and physiological changes after harvest of daylily were described, and the development status of daylily industry and storage and preservation technology were summarized in this review. Finally, the processing technology of daylily was prospected.
Research Progress Of Triplex Nucleic Acid In Food Safety Detection,
2022
School of Food Science and Bioengineering, Changsha University of Science and Technology, Changsha, Hunan 410114 , China ；Hunan Provincial Key Laboratory of Cytochemistry, Changsha University of Science and Technology, Changsha, Hunan 410114 , China
Research Progress Of Triplex Nucleic Acid In Food Safety Detection, Sun Hai-Yan, Lei Yan-Li, Chen Wei-Ju, Quan Ke
Food and Machinery
This paper reviews the structure and stability of triplex nucleic acid, the progress of triplex nucleic acid-based fluorescence, electrochemical, colorimetric platform in detecting food borne hazards, and discusses the challenges and future development prospect of triplex nucleic acid-based detection technology in food safety field.
Effects Of Composite Probiotics On The Intestinal Function In Mice,
2022
Ausnutria Dairy 〔China〕 Co., Ltd., Changsha, Hunan 410127 , China ；Ausnutria Food andNutrition Research Institute, Changsha, Hunan 410299 , China ；Hunan Engineering Research Centerof Human Microecological Products, Changsha, Hunan 410017 , China
Effects Of Composite Probiotics On The Intestinal Function In Mice, Wang Jia-Qi, Kang Wen-Li, Wu Zhong-Kun, Tang Rong-Xue, Peng Can, Dai Zhi-Yong, Dong Ling, Pan Li-Na
Food and Machinery
Objective: The study aimed to explore the effects of composite probiotics on the intestinal regulation. Methods: By constructing mouse model of constipation, intestinal damage and diarrhea, the intestinal ink propulsion, defecation and intestinal mucosal tissue sections in the control group, model group and probiotics-intervention group were evaluated. The diarrhea index and intestinal mucosal damage index were also considered for comprehensively assessment. Results: Compared with the model group, the mid-and high-concentration of composite probiotics could significantly improve the defecation amount and weight, and the small intestinal ink propulsion rate. Moreover, the intestinal mucosal damage score and histopathological damage …
Effects Of Soybean Protein Isolate And Carrageenan On Gel Properties Of Myofibrillar Protein From Loach,
2022
College of Life Science, Yangtze University, Jingzhou, Hubei 434025 , China
Effects Of Soybean Protein Isolate And Carrageenan On Gel Properties Of Myofibrillar Protein From Loach, Sun Peng-Peng, Wang Wei, Li Ruo-Tong, Zhu Hong, Ren Yuan-Yuan
Food and Machinery
Objective: In this study, the effects of exogenous additives on gel properties of myofibrillar protein were explored to improve the property of surimi from fresh-water fish. Methods: The myofibrillar protein of loach was mixed with various contents of soybean protein isolate and carrageenan to prepare composite gel. Its properties were investigated by texture analyzer, color difference analyzer, scanning electron microscope and infrared spectroscopy. Results: With increased content of soybean protein isolate, the gel hardness of myofibrillar protein from loach decreased firstly and then increased; while gel springiness increased firstly and then decreased. Soybean protein isolate could enhance …
Quality Comprehensive Assessment And Measurement Amino Acid Content Of 12 Varieties Of Millet,
2022
Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319 , China
Quality Comprehensive Assessment And Measurement Amino Acid Content Of 12 Varieties Of Millet, Sun Qiang, Guo Yong-Xia
Food and Machinery
Objective: This study aimed to provide the basis for selection and identification, quality breeding and comprehensive processing and utilization of millet germplasm resources. Methods: 12 varieties of millet were used to be tested objects, amino acid content of millet were measured, and then the content of 17 kinds of amino acids in millet were used to be evaluation index and applied to principal component analysis and comprehensive evaluation of quality. Millet varieties were clustered by clustering analysis. Results: The affected order of millet varieties on the content of 17 kinds of amino acids was Ser＞Lys＞Arg＞His＞Met＞Ile＞Thr＞Gly＞Pro＞Tyr＞Phe＞Asp＞Cys＞Glu＞Leu＞Val＞Ala. 2 principal …
Discrete Element Parameter Calibration Of Edible Rose Petals Based On Virtual Stacking Test,
2022
School of Mechanical and Electrical Engineering, Kunming University of Technology, Kunming, Yunan 650500 , China
Discrete Element Parameter Calibration Of Edible Rose Petals Based On Virtual Stacking Test, Gou Fu-Qiang, Yin Zhi-Hong, Niu Xian-Wei, Yan Yue-Bo
Food and Machinery
Objective: Calibration of discrete element simulation parameters of edible rose petals. Methods: The discrete element method was used to establish the discrete element model of flexible edible rose petals. The combination of physical accumulation test and virtual accumulation test, the placket Burman test, the steepest climbing test and box Behnken test were used to determine the significant factors and parameter values that affect the accumulation angle, and the significant parameters were optimized. Results: The values of the significant factors affecting the stacking angle after parameter optimization were: petal-petal collision recovery coefficient was 0.05, petal-petal rolling friction coefficient …
An Anti-Counterfeit Models Of Cigarette Packaging Paper Based On Same Color Ink By Ftir,
2022
Yunnan Tobacco Quality Supervision and Test Station, Kunming, Yunnan 650104 , China
An Anti-Counterfeit Models Of Cigarette Packaging Paper Based On Same Color Ink By Ftir, Li Hai-Yan, Cai Jie-Yun, Li Dan, Ma Hui-Yu, Xiao Yan
Food and Machinery
Objective: Established a group of models used to quickly distinguish anti-counterfeit cigarette packaging paper. Methods: The model based on the same color oil on packaging paper from 3 different brands: Yunyan, Yuxi, and Hongtashan. The Fourier Transform infrared spectroscopy (FTIR) spectrum were collected from 116 samples totally by Attenuated Total Reflection (ATR) accessary. 56 spectrum were used to build the models and 20 samples of each brand were used to verification. Spectrum were second derivative processed and spectral ranges were selected as 3 200~2 700, 1 800~1 580, and 801~720 cm1. Results: Using Mahalanobis distance discriminant method …
The Overview Of Sn-2 Palmitate Content In Breastmilkand Current Research Status,
2022
Aus nutria Dairy〔China〕Co., Ltd., Changsha, Hunan 410200 , China ；Aus nutria Instituteof Food and Nutrition, Changsha, Hunan 410200 , China ；Hunan Enginering and TechnologyResearch Center for Nutrition and Health Products, Changsha, Hunan 410200 , China
The Overview Of Sn-2 Palmitate Content In Breastmilkand Current Research Status, Dong Ling, Zhou Xin-Yue, Jiang Yi-Kang, Li Wei, Pan Li-Na
Food and Machinery
Thecomparisonofsn-2palmitatecontentinhumanmilk and animal milk in China， Europe and the United States， aswellastheresearchreports onthe physiological functionofinfants and young children were reviewed.The application andpotential prospect of sn-2 palmitate in infant food were also pros-pected.
Study On The Relationship Between Polyphenolic Compoundsand The Taste Of Fruit Juice Samples,
2022
Joint Lab of Chemistry&Combustion, IATUSTC-CTAIC, Hefei, Anhui 230066 , China ；TechnologyCenter, China Tobacco Anhui Industrial Co., Ltd., Hefei, Anhui 230088 , China
Study On The Relationship Between Polyphenolic Compoundsand The Taste Of Fruit Juice Samples, He Zeng-Yang, Li Yu-Xiu, Zhu Qing-Sheng, Ning Yong, Zhu Xiao-Lan
Food and Machinery
Objective：This study aimed to clarify the content anddistribution of polyphenols in fruit juice samples and explore theintrinsic connection of the content of polyphenols with the taste offruit juice .Methods： 15 kinds of polyphenols in fruit juice sampleswere determined by HPLC-MS/MS following ethanol ultrasonic-assisted extraction.Various statistical methods such as correlation and_cluster analysis，were used to establish thesensory evaluation system of fruit juice with the values ofdifferent tastes，including sweetness，sourness，bitterness，salty， umami， astringency and piquancy.Lastly， the relationshipbetween the content of polyphenols and sensory evaluation wasexplored by correlation analysis .Results： 14 types of fruit juiceswere divided into four categories owing to …
Determination And Principal Component Analysis Of 8 Kinds Of Bioactive Substances In Different Flaxseed Vareties,
2022
Heilongjiang Bay i Agricultural University, Daqing, Heilongjiang 116331 9, China
Determination And Principal Component Analysis Of 8 Kinds Of Bioactive Substances In Different Flaxseed Vareties, Sun Qiang, Wang Li-Yan, Jing Rui-Yong, Guo Yong-Cia
Food and Machinery
Objective：Thisstudy aimedto investigatethedifference of bio activators from different flaxseed .Methods： 12flaxseed varieties were used as study objectives， 8kindsofbioac-tivat ors from different varieties of flaxseed were measured andanalyzed by principal component and clustering.Results：Theorder of effect of flaxseed varieties on bioactive substances was asfollows：lignan＞total cyanide＞flavone＞phytosterol＞total phe-no lic acid＞to cop hero nic acid＞FRAP value＞DP PH value.3 principal components were extracted by principal component a-nalysis and their accumulative contribution ratereach to82.925%.The first， second and third principal component weremainly determined by flavone and FRAP values， lignan and to co-p hero nic acid， total cyanide and total phenolic acid， respectively.12 flaxseed …
Determination Of Soybean And Wheat Allergens In Food By Dual Real-Time Fluorescence Pcr,
2022
Suzhou Products Quality Supervision and Inspection Institute, Suzhou, Jiangsu 215104 , China
Determination Of Soybean And Wheat Allergens In Food By Dual Real-Time Fluorescence Pcr, Jin Ping, Ding Hong-Liu, Zhang Min, Jin Xiao-Hong
Food and Machinery
Objective: A multiplex fluorescence PCR method based on TaqMan probe was developed for simultaneous detection of soybean and wheat allergens in food. Methods: TaqMan probe dual PCR was designed and established based on wheat gliadin gene and soybean lectin gene, respectively. The soybean Lectin gene was detected with FAM marker, and the wheat gliadin gene was detected with HEX marker. Moreover, the eukaryotic 18S rRNA was used as internal reference gene to ensure the effectiveness of the detection system. Results: The multiplex fluorescence PCR method for detection of soybean and wheat allergens created in this …
Screening Of Pde-5 Inhibitors In Health Wine By Surface-Enhanced Raman Spectroscopy,
2022
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075 , China ；Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Foodfor State Market Regulation, Wuhan, Hubei 430075 , China ；Hubei Provincial Engineering andTechnology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075 , China
Screening Of Pde-5 Inhibitors In Health Wine By Surface-Enhanced Raman Spectroscopy, Hu Jia-Yong, Zhou Tao-Hong, Yao Xiao-Fan, Yuan Min-Wen, Liu Di
Food and Machinery
Objective: A surface-enhanced Raman spectroscopy (SERS) method was developed for non-targeted screening of PDE-5 inhibitors in health wine. Methods: An appropriate SERS base of colloidal gold was prepared, and SERS analysis was conducted after the base was mixed with 78 kinds of PDE-5 inhibitors. The spectrogram screening database was established, and whether the matching degree was higher than 70% was used as the basis for judging whether the PDE-5 inhibitors were suspected to be added. Finally, the sensitivity and specificity of the method were investigated. Results: The best method of preparing PDE-5 inhibitors of SERS base was …
Thermal Analysis Of Ws Series Cooling Agent,
2022
Technology Center of Yunnan China Tobacco Industry Co., Ltd., Kunming, Yunnan 650231 , China ；Schoolof Chemistry and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650106 , China
Thermal Analysis Of Ws Series Cooling Agent, 1li Yi-Rong, Zhu Rui-Zhi, Jiang Wei, Jiang Li-Hong, Yang Ji
Food and Machinery
Objective: Evaluation of the safety of WS series cooling agents for cigarettes. Methods: In this paper, pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) and thermogravimetric (TG) methods were used to study the pyrolysis behavior and content distribution of WS series cooling agents in tobacco under different atmospheres. Results: Through TG/DSC analysis, WS-3, WS-5, and WS-23 had only one obvious thermal weight loss stage, and the maximum weight loss rates occurred at 251.8, 281.6, and 206.5 ℃, respectively. The three cooling agents all showed sharp endothermic peaks before weight loss, and a phase transition process of melting occurred. It was speculated …
Research And Enlightenment On Quality And Safety Supervision System Of Agricultural Food Products In Bangladesh,
2022
Shantou Customs Technology Center, Shantou, Guangdong 515031 , China
Research And Enlightenment On Quality And Safety Supervision System Of Agricultural Food Products In Bangladesh, Li Guan-Si, Cao Xiao-Gang, Li Ke, Li Zhi-Yong, Wei Shuang
Food and Machinery
According to the United Nations trade policy review documents, notifications, comments, special trade concerns and official authoritative research reports, the Bangladesh agricultural food product quality and safety regulatory bodies, laws and regulations, standard system, and other aspects were reviewed. It was suggested that Chinese export enterprises take advantage of local agricultural food products to actively explore the import and export trade market between China and Bangladesh. Moreover, Chinese regulators should be followed Bangladesh agricultural food products regulatory system changes, to further strengthen the assistance of agricultural and food product safety system in Bangladesh. Functional advantages can better promote bilateral trade …
Research And Development Of Fruit Quality Sorting Machine,
2022
Qingdao Agricultural University, College of Mechanical and Electrical Engineering, Qingdao, Shangdong 266109 , China
Research And Development Of Fruit Quality Sorting Machine, Wang Wen-Chao, Ge Feng-Li, Xu Wen-Kai, Zhao Lu-Hai, Li Juan
Food and Machinery
Objective: Improve the quality and efficiency of fruit quality sorting and reduce labor costs. Methods: A fruit quality sorting machine is designed to detect and sort for fruit quality. The sorting machine uses STC8A8K64S4A12 as the slave computer and uses Jetson Xavier NX as the master computer. The sorting machine can achieve the detection and sorting of the fruit on damage and sugar content by artificial intelligence. Results: The accuracy, resolution of sugar degree and speed of the sorter for detecting fruit were 99%, 0.1% and 7 200 h-1, respectively. Conclusion: The device can …
Study On Antioxidant Activities Of Proteins And Enzymatic Hydrolysates Of Eight Edible Fungi,
2022
Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai Key Laboratoryof Agricultural Genetics and Breeding, Shanghai 201403 , China ；College of Food Sciences,Shanghai Ocean University, Shanghai 201306 , China
Study On Antioxidant Activities Of Proteins And Enzymatic Hydrolysates Of Eight Edible Fungi, Wang Yao-Ran, Zhao Yan, Chen Ming-Jie, Wei Chen-Ying, Zha Lei, Li Zhi-Ping
Food and Machinery
Objective: This study focused on the antioxidant activities of eight edible fungiproteins and their hydrolysates. Methods: Eight edible fungi proteins were hydrolyzed using alkaline protease. DPPH free radical scavenging activity, ABTS free radical scavenging activity, Fe2+ chelation rate and reducing power were used to evaluate antioxidant activity. Results: SDS-PAGE electrophoretic profile results indicated that alkaline protease was efficient in hydrolyzing proteins into low molecular weight peptides and amino acid; the antioxidant activity of the alkaline proteolysis product of Volvariellavolvacea was the highest with DPPH free radical scavenging ability (5 140.45±5.35) μg Trolox/g, ABTS free radical scavenging …
Optimization Of Extraction Technology Of Total Flavonoids From Rooibos And The Antibacterial Effect On Escherichia Coli,
2022
College of Environmental Engineering, Yellow River Conservancy Technical Institute, Kaifeng, Henan 475000 , China
Optimization Of Extraction Technology Of Total Flavonoids From Rooibos And The Antibacterial Effect On Escherichia Coli, Wang Zhen-Wei, Zheng Li-Jing
Food and Machinery
Objective: This study aimed to evaluate the antibacterial activity of total flavonoids from rooibos (TFR) against E. coli and explore the application of rooibos resources in food field. Methods: Total flavonoids were extracted by ultrasonic-assisted ethanol extraction, and the extraction process was optimized by response surface test. The antibacterial effects of TFR on E. coli were analyzed by disk diffusion method, double dilution method, growth curve change and transmission electron microscope test. Results: The optimal extraction conditions were as follows: ethanol volume fraction 53%, solid-liquid ratio 1∶27 (g/mL), ultrasonic temperature 77 ℃, ultrasonic time 68 min. Under …
