Food Science Commons^™

The Protection Effect Of Dihydromyricetin And Its Acylated Derivatives On Oxidative Damage Of Hepatocytes, Du Bao-Shuang, Chen Shang-Wei, Li Yue, Zhu Song

Food and Machinery

Objective:This study aimed to investigate the protective effect of dihydromyricetin (DHM) and its derivatives on oxidative damage of hepatocytes.Methods:The hydrogen peroxide damage model of L02 cells was established. DHM derivatives with different lipophilicity were obtained by enzymatic acylation of DHM. The levels of reactive oxygen species (ROS), lactate dehydrogenase (LDH), malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), and mitochondrial membrane potential and Caspase 3 were measured to evaluate the protective effect of DHM and its derivatives on damaged hepatocytes.Results:Except for 3-O-lauroyl-DHM, the level of reactive oxygen species (ROS) the release of lactate …

Comparative Study On Protein And Frying Characteristics Of Three Surimi, He Li, Li Xi-Mao, Hu Bing-Yue, Xie Dong-Fei, Hu Xiu-Ting, Luo Shun-Jing

Food and Machinery

Objective:The objective of this study isto investigatethe protein and frying characteristics of grass carp, silver carp and pangasius fish surimi. Methods:The frying characteristics of surimi were characterized by measuring porosity, hardness, and water absorption rate, and the dynamic rheological properties, foam stability and SDS-PAGE of surimi were measured to explore its influencing mechanism. Results:Compared with grass carp fish balls and silver carp fish balls, pangasius fish balls had loose tissue, large pores, highest porosity, lowest hardness, and highest water absorption rate. In addition, the gel strength of pasteurized fish surimi was much higher than that of silver …

Selenium Amino Acids Speciation In Selenium-Enriched Agricultural Products And Their Distribution In Different Protein Components, Liu Wei, Yin Jin-Jing, Wu Mu-Ci, Yang Ning, He Jing-Ren, Zhang Rui

Food and Machinery

Objective:This study aimed to explore the distribution and speciation of selenium amino acids in different solubilized proteins of selenium-enriched broccoli, soybean, corn and barley seedlings.Methods:The contents of selenomethionine, selenocysteine, methylselenocysteine and selenethionine in four selenium-enriched cereals and cruciferous agricultural products were determined by high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry. Moreover, the distribution characteristics of each selenium amino acid in albumin, globulin, gliadin and glutelin with different solubilized proteins were analyzed.Results:The content and distribution of selenium amino acids of the four selenium-enriched plants in different protein components were significantly different (P＜0.05). SeMet was …

Effects Of Different Drying Methods On The Reconstituability Of Kudzu Powder-Fatty Acid Complexes, Zhang Zhi-Lin, Zhang Xuan, Xu Yuan-Rui, Luo Shun-Jing, Liu Cheng-Mei

Food and Machinery

Objective:This study aimed to improve the reconstituability of kudzu powder.Methods:The kudzu powder-fatty acid complexes were prepared by different drying methods after co-gelatinization of kudzu powder with lauric acid, and investigated the effects of drying methods on the instant properties of the complexes from the changes of crystal structure, microstructure, bulk density, water absorption index and swelling power.Results: The drying method influenced the water absorption capacity of the complexes, there by affected the reconstituability of the complexes. Compared with oven drying and far-infrared drying, the complexes prepared by spray drying and freeze-drying had lower bulk density, more …

Effects Of Dehydration Methods On The Volatile Components Of Lemon Slices With Gc-Ims, Ding Sheng-Hua, Zhang Da-Li, Luo Yao-Hua, Li Xiang, Fu Fu-Hua

Food and Machinery

Objective:In order to investigate the effects of freeze drying (FD), air drying (AD), infrared drying (IRD) and vacuum drying (VD) on volatile components content of lemon slices.Methods:Gas chromatography-ion mobility spectroscopy (GC-IMS) was used in this study, and the principal components analysis was performed to analyze the volatile components of lemon slices exposed to different drying methods.Results:72 kinds of volatile components were detected in fresh lemon slices treated with FD, AD, IRD and VD, and their contents were different in the slices treated with FD, AD, IRD and VD, which influenced the flavor of lemon slices., …

Degradation Of Organic Pollutants Using A Photo-Enzymatic Cascade Process, Yu Xiao-Min, Pan Dai-Qing, Long Qing-Yun, Chen Xiao-Yang

Food and Machinery

Objective:A strategy of degrading organic pollutants using a photo-enzymatic cascade process was established, to avoid the problem caused by the use of H2O2 as oxidant in peroxidase-catalyzed reaction.Methods:After screening of photosensitizer, reaction pH and temperature, phenols and azo dyes can be degraded efficiently herein, by a combination of photo-catalytic H2O2 generation in situ and peroxidase-catalyzed oxidation.Results: 8 organic pollutions in different structure can be degraded with good to excellent degradation rate within 40 minutes. Moreover, the mechanism of this degradation process was proposed.Conclusion: Compared with classic methods of degrading organic pollutants, this photo-enzymatic cascade process …

Determination Of Pantothenic Acid In Infant Milk Powder By Microbiological Method, He Yan, Zhong Fei-Fei, Wang Xiao-Qing, Xu Wen-Yang, Yang Tao

Food and Machinery

Objective:This study aimed to optimize the determination conditions of pantothenic acid content in infant milk powder by microbiological method and provide test data for the subsequent revision of the national standard method for pantothenic acid detection.Methods:The issues covering the determination of pantothenic acid by the national standard method were analyzed, and the key steps in the detection process, including bacterial solution preparation, pretreatment, and absorbance determination, were emphatically studied.Results:Lactobacillus plantarum from ATCC and CICC can be used to determine pantothenic acid. The best results were obtained by directly inoculating 80% bacterial solution concentration into the …

Evaluation Of Uncertainty In The Determination Of Acid Scarlet Gr In Orange Juice By High Performance Liquid Chromatography, Yuan Yuan, Zeng Hui, Xiao Yan, Yang Li-Xia, Cui Xiao-Jiao, Yang Yun, Wu Hou-Lu

Food and Machinery

Objective:The uncertainty of the determination of acid scarlet GR in orange juice by high performance liquid chromatography (HPLC) was evaluated. The source of uncertainty and the key factors affecting the test results were analyzed, so as to improve the accuracy of the test results.Methods:The mathematical model of uncertainty of acid scarlet GR content in orange juice was established. The factors that may introduce uncertainty in the detection process were analyzed, and the uncertainty components were evaluated.Results:The content of acid scarlet GR in self-made positive orange juice was 1.46 mg/kg, the expanded uncertainty was 0.11 mg/kg …

New Model Of Functional Food Research And Development: Flexible And Precise Nutrition Intervention System, Zhou Dan, Zheng Jian-Xian, Huang Shou-En

Food and Machinery

Based on the scientific theory of modern nutrition and functional food science, this paper uses biotechnology and information digital technology to establish a more precise, flexible, integrated and digital functional food research and development system-flexible precise nutrition intervention system (FPNIS) which improves the shortcomings of the two common functional food research and development models that are based on traditional Chinese herbal medicines or simple ingredient dietary supplements. Through the establishment of FPNIS, provide a new way to explore the research and development of efficient and precise functional food, and analyze its trend.

Analysis Of Volatile Components Of Fermented And Soaked Bayberry Wine, Lu Jin-Hua, Xie Ding, Xian Ling-Zhi

Food and Machinery

Objective:Differences in the composition of volatile substances in bayberry wine were used to distinguish the process of making bayberry wine.Methods:Two different processes of fermentation and soaking were used to prepare bayberry wine, and gas chromatography-ion mobility chromatography was used to analyze the volatile components of the two bayberry wines qualitatively and quantitatively.Results:A total of 59 kinds of volatile substances were detected and characterized in the two bayberry wines, including 18 alcohols, 19 esters, 9 aldehydes, 6 ketones, and 3 pyrazines and their derivatives, 1 acid, 3 others. The alcohols in fermented bayberry wine were more …

The Effect Of Drying Method On The Physical And Chemical Properties And Antioxidant Activity Of Extruded Wheat Bran, Wu Fan, Wang Zhan, Zhou Jian, Shen Wang-Yang, Jia Xi-Wu

Food and Machinery

Objective:Using wheat bran as raw material, the extruded bran is obtained by extrusion stabilization treatment, and the best drying method for extruded bran is determined.Methods:The effects of three drying methods (fluidized bed drying, microwave drying, hot air drying) were studied on the basic components of extruded bran, water holding capacity, water solubility, swelling power, oil holding power, color value and other physical and chemical properties, oxidation resistance, total phenols and total flavonoids; Using antioxidant, total phenols and total flavonoids as indicators to determine the best drying method for extruded bran.Results:The three drying methods have no …

Rapid Determination Of The Quality Of Frying Oils Using Mid-Infrared Spectroscopy Coupled With Chemometrics Methods, Ning Hai-Hua, Zhou Qi-Jia, Du Rui, Miao Jun-Jian, Lai Ke-Qiang

Food and Machinery

Objective:Ensure the safety of final fried food in the process of industrial food production.Methods:The acid values, peroxide values and carbonyl values of the frying oil samples collected from a university cafeteria were determined based on the standard methods of China. Their infrared spectra were obtained with a Fourier transform infrared spectrometer (FT-IR) equipped with multi-point attenuated total reflection (ATR). Partial least squares regression (PLS) was employed to build mathematical models for control oil samples, random oil samples, and all samples, respectively.Results:The models had good predictability for the determination of acid values of frying oils, but …

Development Of Rapid Detection Technique For Potassium Content In Cigarette Paper, Chen Peng-Fei, Wang Si-Lu, Yu Sai-Bo, Peng Xing, Huang Jia-Ying, Xiao Yang, Xiao Zhong-Liang, Cao Zhong

Food and Machinery

Objective:A method for simple and rapid determination of potassium content in cigarette paper will be built for workshops of cigarette factory.Methods:An ion-selective electrode method was used by comparing with the pretreatment methods for cigarette paper samples and potential response behaviors of potassium ion-selective electrodes in different buffer solutions.Results: The potassium ion selective electrode possessed excellent response performance for K+in lithium acetate buffer solution (0.1 mol/L, pH 7.0) with a linear response range of 1.0×10-5~1.0×10-2mol/L, a slope of 55.79 mV/dec(25 ℃), and a lower limit of detection of 2.14×10-6mol/L. The average relative standard deviations of the K+selective …

The Practice Of Balanced Diet Model For Chinese Residents: Interpretation Of Dietary Guidelines For Chinese Residents (2022), Cao Qing-Ming, Wang Wei-Jie, Zhang Lin, Zhou Wen-Hua, Wang Yuan-Qing

Food and Machinery

Based on the comparison of the five editions of the Dietary Guidelines, this article have extracted the health concepts that each edition of the dietary guidelines adheres to, including the concepts of reasonable match, energy balance and healthy weight, three reductions (reducing salt, fat and sugar) to prevent chronic non-communicable diseases, and also analyzes the updated and practical characteristics of the new edition of the Dietary Guidelines for Chinese Residents, including the Oriental Healthy Dietary Model, knowing how to cook and choose food, and enjoying of serving chopsticks and individual serving. On these basis, the author analyzed the practice of …

Uncertainty Evaluation On Determination Of Statins In Health Food By Gas Chromatography Mass Spectrometry (Gc-Ms), Zhang Li-Xia, Guo Qing-Yuan, Hua Qi-Cheng, Li Xiang-Mei

Food and Machinery

Objective:In presence of measurement uncertainty evaluation, the detection methods, with water-sodium chloride pretreatment, for health food was evaluated.Methods:A mathematical model was established to analysis of uncertainty sources. Then the individual components of uncertainty were evaluated. Finally, the combined uncertainty and extended uncertainty were calculated.Results:The uncertainty caused by several factors, including the fitting of the standard curve, the preparation of solution and standard, the repeatability of measurement, and the weigh of sample.The contents of mevastatin, lovastatin and simvastatin were 0.099 2, 0.101 0, 0.099 5 mg/kg in health foods, respectively. The relative combined standard uncertainties were …

Zoned Leasing Impact On Shellfish Aquaculture Industry Development, Rebekah Woodburn

All Theses And Dissertations

Shellfish aquaculture is a growing industry in the United States that supports many individuals and communities. An important step in establishing or growing a shellfish aquaculture operation is obtaining a lease in which to cultivate shellfish. While many states allow aquaculturists to find their own lease location, the often time-intensive and expensive process to have the lease approved and permitted can be a great barrier for new entrants to the industry. Zoned leasing is a way for state agencies to establish large areas and pre-approve them for shellfish aquaculture, then divide the areas into smaller parcels of leases to be …

Polyploidy Events Shaped The Expansion Of Transcription Factors In Cucurbitaceae And Exploitation Of Genes For Tendril Development, Yu Zhang, Yingchao Zhang, Bing Li, Xiao Tan, Changping Zhu, Tong Wu, Shuyan Feng, Qihang Yang, Shaoqin Shen, Tong Yu, Zhuo Liu, Xiaoming Song

Department of Food Science and Technology: Faculty Publications

Cucurbitaceae is one of the most important plant families distributed worldwide. Transcription factors (TFs) regulate plant growth at the transcription level. Here, we performed a systematic analysis of 42 641 TFs from 63 families in 14 Cucurbitaceae and 10 non-cucurbit species. Whole-genome duplication (WGD) was the dominant event type in almost all Cucurbitaceae plants. The TF families were divided into 1 210 orthogroups (OGs), of which, 112 were unique to Cucurbitaceae. Although the loss of several gene families was detected in Cucurbitaceae, the gene families expanded in five species that experienced a WGD event comparing with grape. Our findings revealed …

Summaries Of Arkansas Cotton Research 2021, Fred Bourland

Arkansas Agricultural Experiment Station Research Series

While the basic growth and development of the cotton plant have not changed significantly in recent history, the business of cotton production is ever-changing. The last two years have seen us plant a crop just about as late as we thought possible, yet extended favorable conditions at season's end have been our salvation, helping to lead us to record yields. The economic environment over the last few years has been such that farmers need to produce record or near-record yields to advance. Unfortunately, production levels at the state yield average barely cover out-of-pocket expenses.

Great uncertainties exist for the upcoming …

Arkansas Wheat Performance Tests 2021-2022, J. F. Carlin, R. B. Morgan, R. D. Bond, D. E. Moon

Arkansas Agricultural Experiment Station Research Series

Wheat variety performance tests are conducted each year in Arkansas by the University of Arkansas System Division of Agriculture’s Arkansas Agricultural Experiment Station, Department of Crop, Soil, and Environmental Sciences. The tests provide information to companies developing varieties and marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for small-grain producers. The tests are conducted at the Northeast Research and Extension Center at Keiser, the Vegetable Substation near Kibler, the Lon Mann Cotton Research Station near Marianna, the Pine Tree Research Station near Colt, and the Rohwer Research Station near Rohwer. Specific location …

Cofermentation, Post-Alcoholic, And Post-Malolactic Fermentation Blending Of Malbec, Merlot And Petite Sirah Wines, Armando Arturo Vega-Osorno

Master's Theses

A two-year study was conducted to assess the effects of cofermentation on red wine varietals. During the winemaking process, wines can be made from two or more varieties by picking, crushing and fermenting them together, a practice known as cofermentation. They can also be blended either after the completion of alcoholic fermentation or after malolactic fermentation. In the first year of the study, two grape varieties, Merlot (Mer), and Malbec (Mal) were cofermented. On the second year, a third varietal, Petite Sirah (PS) was also studied. Cofermented wines containing every possible binomial combination of the varietals was made and one …