Open Access. Powered by Scholars. Published by Universities.®

Food Science Commons™

Open Access. Powered by Scholars. Published by Universities.®

12,464 Full-Text Articles 30,655 Authors 7,860,217 Downloads 221 Institutions

All Articles in Food Science

Faceted Search

12,464 full-text articles. Page 332 of 530.

Foodways (Fa 1202), Manuscripts & Folklife Archives 2018 Western Kentucky University

Foodways (Fa 1202), Manuscripts & Folklife Archives

Folklife Archives Finding Aids

Finding aid only for Folklife Archives Project 1202. Collection of papers written by students in Professor Barry Kaufkins’ Foodways class (FLK/ANTH 388) at Western Kentucky University. While a majority of the papers focus on Easter traditions, other topics of note include immigrant foodways traditions, fundraising efforts, community organizations, tailgating, and sorority life. Papers also include photographs taken by students.


Concentration Of Listeria Monocytogenes In Skim Milk And Soft Cheese Through Microplate Immunocapture, Steven A. Rogers, Melissa Calicchia, Rosalee S. Hellberg 2018 Chapman University

Concentration Of Listeria Monocytogenes In Skim Milk And Soft Cheese Through Microplate Immunocapture, Steven A. Rogers, Melissa Calicchia, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Microplate immunocapture is an inexpensive method for the concentration of foodborne pathogens using an antibody-coated microplate. The objective of this study was to determine the efficacy of microplate immunocapture as an alternative to traditional enrichment for concentrating Listeria monocytogenes to levels detectable with selective plating or real-time PCR. L. monocytogenes isolates serologically characterized as Type 1 (1/2a) and Type 4 (untypeable) were grown overnight and diluted to 100 to 106 colony-forming units (CFU)/mL. The isolates were used to optimize microplate immunocapture in tryptic soy broth with 0.6% yeast extract (TSBYE), skim milk, and queso fresco samples. Following …


An Efficient Process For Co-Production Of Γ-Aminobutyric Acid And Probiotic Bacillus Subtilis Cells, Hongbo Wang, Jinge Huang, Lei Sun, Fuchao Xu, Wei Zhang, Jixun Zhan 2018 Utah State University

An Efficient Process For Co-Production Of Γ-Aminobutyric Acid And Probiotic Bacillus Subtilis Cells, Hongbo Wang, Jinge Huang, Lei Sun, Fuchao Xu, Wei Zhang, Jixun Zhan

Biological Engineering Faculty Publications

This study was to establish an integrated process for the co-production of γ-aminobutyric acid (GABA) and live probiotics. Six probiotic bacteria were screened and Bacillus subtilis ATCC 6051 showed the highest GABA-producing capacity. The optimal temperature and initial pH value for GABA production in B. subtilis were found to be 30 °C and 8.0, respectively. A variety of carbon and nitrogen sources were tested, and potato starch and peptone were the preferred carbon and nitrogen sources for GABA production, respectively. The concentrations of carbon source, nitrogen source and substrate (sodium L-glutamate) were then optimized using the response surface methodology. The …


The United Arab Emirates Indigenous Essential Oil-Bearing Plants: Essential Oils Of Aerva Javanica And Cleome Amblyocarpa Grown In Sandy Soils Under Arid Conditions, Suzan Marwan Ramadan Shahin 2018 United Arab Emirates University

The United Arab Emirates Indigenous Essential Oil-Bearing Plants: Essential Oils Of Aerva Javanica And Cleome Amblyocarpa Grown In Sandy Soils Under Arid Conditions, Suzan Marwan Ramadan Shahin

Dissertations

Essential Oils (EOs) are expensive hydrocarbons produced exclusively by specific species in the plant’s kingdom. Nowadays, with the growing trends of a healthy lifestyle and enormous research-based discoveries, EOs became a popular, attractive topic, for both research and industry, with revenues reaching billions of dollars annually. The United Arab Emirates (UAE) has rich traditional herbal medicine, associated with topical and EO-aromatherapy applications, that (in most cases) not scientifically justified nor clarified. This dissertation investigated the EO-bearing plants of the UAE, providing a databank with comprehensive knowledge for all indigenous and naturalized EO-bearing plant species of the UAE wildflowers. Also, this …


Effects Of Fruit Position In Standard Place Pack Cartons And Gamma 1 Irradiation On The Postharvest Quality Of ‘Barnfield’ Navel Oranges, Karina Cruz Rodriguez (Friscia), José de Jesús Ornelas-Paz, Vrani Ibarra-Junquera, Maria Criselda Toto, Akanksha Jain, Anuradha Prakash 2018 Chapman University

Effects Of Fruit Position In Standard Place Pack Cartons And Gamma 1 Irradiation On The Postharvest Quality Of ‘Barnfield’ Navel Oranges, Karina Cruz Rodriguez (Friscia), José De Jesús Ornelas-Paz, Vrani Ibarra-Junquera, Maria Criselda Toto, Akanksha Jain, Anuradha Prakash

Food Science Faculty Articles and Research

The objective of this study was to determine if oranges in the top and bottom layers within a Standard Place Pack were impacted differently by irradiation after long-term storage. ‘Barnfield’ Navel oranges were packed in Standard Place Pack cartons and treated with 0, 0.15, or 1 kGy of gamma irradiation. The fruit were stored for 3 weeks at 5 °C and then for 1 week at 20 °C. After storage, the fruit from the top and bottom layers were separately evaluated for quality. The development of stem-end rind breakdown (SERB) was the main cause of quality loss and was greater …


Effects Of Ph And Heat Treatments On Structure And Functional Properties Of Rice Proteins, LIU Fang, XU Zhou, CHEN Maolong, CHENG Yunhui 2018 College of Chemical and Biological Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China

Effects Of Ph And Heat Treatments On Structure And Functional Properties Of Rice Proteins, Liu Fang, Xu Zhou, Chen Maolong, Cheng Yunhui

Food and Machinery

In this study, rice protein was used as raw material to study the effect of pH treatment and heat treatment on the structure and functional properties of rice protein. Studies have found that the functional properties of rice proteins have been improved to some extent after being treated with different pH values for 40 minutes. The solubility, emulsifying and emulsifying stability, foaming property and surface hydrophobicity of RP treated at pH 12.0/40 min were 5.16%, 0.626% and 12.64%, and 135%, respectively, with 2.46, 2.85, 1.12, and 2.51 times higher than that of the RP. At this time, the fraction of …


Gc/Ms For Simultaneous Determination Of 14 Photo-Initiators In Fatty Food, XU Wenyang, CHEN Hua 2018 Hunan Research Institute of Food Quality Supervision and Inspection, Changsha, Hunan 410017, China

Gc/Ms For Simultaneous Determination Of 14 Photo-Initiators In Fatty Food, Xu Wenyang, Chen Hua

Food and Machinery

To establish a GC-MS method for determination of 14 photo-initiators in fatty food. The homogeneous samples were extracted by acetone-hexane(2∶8,v:v) for 15 min at room temperature. The supernatant was purified by HLB column, and the eluent was then collected, which was further purified by PSA. The purified eluent was centrifuged and determined by GC-MS. The recoveries were between 73.0%~92.4% at spiked levels of 0.000 2~0.001 0 mg/kg, and the relative standard deviation of the methods were 4.1%~8.9%, with the LOD ranging from 0.02~0.20 μg/kg. It was in accordance with the requirement of technical parameters for analysis with fast and simple …


Watermelon Sugar Content Detection Based On The External Characteristics And Sub-Band Spectrum Centroid Method, ZHUANG Wei, LI Zhenfeng, SONG Feihu, LI Jing, ZHU Guanyu 2018 School of Mechanical Engineering of Jiangnan University, Wuxi, Jiangsu 214222, China; Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214222, China

Watermelon Sugar Content Detection Based On The External Characteristics And Sub-Band Spectrum Centroid Method, Zhuang Wei, Li Zhenfeng, Song Feihu, Li Jing, Zhu Guanyu

Food and Machinery

At present, the vibration nondestructive testing method has high requirements on hardware system and test conditions, and few practical application systems have been designed..In order to solve this problem, a portable vibration test detection system was built. The time signal was denoised by the method of wavelet threshold denoising. The sub-band spectrum centroid of a certain watermelon variety was extracted. The product of square of transverse diameter and the longitudinal diameter was proposed as the volume parameters. It is found that the frequency point of sub-band spectrum centroid is negatively correlated with the quality of watermelon and the volume parameters, …


An Investigation On Flavors Formation Between The Reaction Of 5-Hydroxymeth-Ylfurfural And Amino Acid, WANG Ge, ZENG Rui, QIU Ruixia, HUANG Caihuan, ZHENG Jie 2018 Department of Food Science and Engineering, Jinan University, Guangzhou, Guangdong 510000, China

An Investigation On Flavors Formation Between The Reaction Of 5-Hydroxymeth-Ylfurfural And Amino Acid, Wang Ge, Zeng Rui, Qiu Ruixia, Huang Caihuan, Zheng Jie

Food and Machinery

The reaction of 5-hydroxymethylfurfural (HMF) with serine, threonine, gamma-aminobutyric acid and alanine, and the relative volatile substances were determined by Gas Chromatography-Mass Spectrometer (GC-MS). The results showed that 21 volatile components in total were detected from the reaction system of HMF and these amino acids, most of which were carbonyl compounds, furans and hydrocarbon compounds. In HMF-Serine system, the concentrations of pyrazine,5-methyl-2-furaldehyde and nonanal were the highest in the reaction system with the highest contents of the reactants and the longest reaction time. In HMF-Threonine system, the production of acetophenone, 3-methyl-pyrazine and 2,5-dimethyl-pyrazine was positively influenced by the reaction time. …


Isolation, Purification And Structure-Activity Relationship Of Silk Fibroin Peptides With Anti-Alcoholism Activity, YUAN Liang, DAI Jun, CHEN Shangwei, ZHU Song, ZHANG Xuejun, ZHANG Ping 2018 State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China

Isolation, Purification And Structure-Activity Relationship Of Silk Fibroin Peptides With Anti-Alcoholism Activity, Yuan Liang, Dai Jun, Chen Shangwei, Zhu Song, Zhang Xuejun, Zhang Ping

Food and Machinery

Waste silk as raw material was dissolved with 40% CaCl2 solution at first, and silk fibroin was extracted after dialysis; Then the enzymolysis conditions of silk fibroin was optimized. Besides, silk fibroin peptides was fractionated by using HPGFC and separated ulteriorly by RP-HPLC, then their anti-alcoholism activity in vitro was detected by Valle&Hoch’s method. The experiment results showed that the optimal enzymatic hydrolysis conditions of silk fibroin were as followed: time of 240 min, enzyme dosage of 2%, substrate concentration of 5%, pH 8.5 and temperature of 60 ℃, and the optimal degree of hydrolysis(DH)was 23.22%. In addition, the …


Experimental Study On The Expression Level Of Opn And Tgf-Β1 In Rat Liver Fibrosis Model With Tuber Granule Intervention, YUAN Yong 2018 Hainan Medical College, Haikou, Hainan 570102, China

Experimental Study On The Expression Level Of Opn And Tgf-Β1 In Rat Liver Fibrosis Model With Tuber Granule Intervention, Yuan Yong

Food and Machinery

Methods The 30 rats were randomly divided into normal control group, the non-treatment group of liver fibrosis model and the treatment group of liver fibrosis model. Each group of rats are take the following operation: Western blotting test OPN protein expression after eitht weeks。The PCR detection of TGF-β1 mRNA expression level. Results This study showed that the treatment group of liver fibrosis model of HA, LN, PCIII, CIV radioimmunoassay were higher than the treatment group have significant differences (P<0.01), and the differences were statistically significant than the non-treatment group of liver fibrosis model at the same time(P<0.05). The non-treatment group …


Locally Sonochemical Effect On Total Phenolic Contents And Theirantioxidant Abilities In The Extracts From Sweet Orange Peels, ZHANG Zheng, MA Yaqin, WANG Pengxu, CHENG Chuanxiang, ZHU Panpan 2018 Citrus Research Institute, Southwest University, Chongqing 400712, China; National Citrus Engineering Research Center, Chongqing 400712, China

Locally Sonochemical Effect On Total Phenolic Contents And Theirantioxidant Abilities In The Extracts From Sweet Orange Peels, Zhang Zheng, Ma Yaqin, Wang Pengxu, Cheng Chuanxiang, Zhu Panpan

Food and Machinery

The effect of ultrasonic parameters including ultrasonic treatment temperature and time and the ultrasonic treatment power on the content and antioxidant capacity of phenolic acids from orange leaves peels in a local position were explored. The results indicated that ferulic acid content was the highest in orange leaves and peels, and both the content of seven phenolic acids and total phenolic contents (TPC) were increased with the increase of treatment time and temperature with some small differences. 30 ℃ was found to be the optimal temperature. Ultrasonic treatment power was also revealed to have a positive effect on the content …


Study On The Effect Of Maillard Reaction On Antioxidant Activity Of Sesame Polypeptides, QIAN Senhe, WANG Zhou, WEI Ming, XUE Zhenglian 2018 Department of Biochemistry, Anhui Polytechnic University, Wuhu, Anhui 241000, China; Research Institute of Microbial Pharmaceutical Industry, Anhui Polytechnic University, Wuhu, Anhui 241000, China

Study On The Effect Of Maillard Reaction On Antioxidant Activity Of Sesame Polypeptides, Qian Senhe, Wang Zhou, Wei Ming, Xue Zhenglian

Food and Machinery

Based on the preparation of sesame peptides, the effect of Maillard reaction on antioxidant activity of sesame polypeptides was studied. The results showed that the suitable ratio of peptide to sugar was 1∶2 for Maillard reaction of sesame polypeptide. The Maillard reaction could significantly improve the antioxidant activity of sesame polypeptide, and the reducing power, ABTS+ radical scavenging rate, DPPH radical scavenging rate and hydroxyl radical scavenging rate were increased by 121.4%, 304.5%, 81.2% and 103.2%, respectively. The contents of lysine methionine and tyrosine were reduced, but the contents of alanine and valine were increased, moreover, aspartic acid, glutamic …


Effect Of Salt Content On Physicochemical Properties And Antioxidant Activity During Post-Fermentation Of Douche, WAN Jun, CHENG Weiwei, SHEN Xiaolu, JIANG Aimin 2018 Guangdong AIB Polytechnic College, Guangzhou, Guangdong 510507, China

Effect Of Salt Content On Physicochemical Properties And Antioxidant Activity During Post-Fermentation Of Douche, Wan Jun, Cheng Weiwei, Shen Xiaolu, Jiang Aimin

Food and Machinery

The impact of salt content on post-fermentation of douchi was studied. In the post-fermentation stage, 8%, 10%, 12% of salt were added for 30 days fermentation. The results showed that, with the increase of salinity, the total acids and pH decreased, the hardness and chewiness increased, which shallowed the color and declined the taste of douchi. The high salinity was bad for producing the total amino acid nitrogen and γ-PGA, and also inhibited the antioxidant activity of douchi. Finally, 8% of salt was considered to be the best, but the flavor remained to be improved.


Study On Enzymatic Hydrolysis-Mild Thermal Oxidation Of Chicken Fat For Preparing Chicken Flavor, YU Jingyang, CHEN Huangnv, XIA Shuqin, ZHANG Xiaoming 2018 School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China

Study On Enzymatic Hydrolysis-Mild Thermal Oxidation Of Chicken Fat For Preparing Chicken Flavor, Yu Jingyang, Chen Huangnv, Xia Shuqin, Zhang Xiaoming

Food and Machinery

At present, commercial refined chicken fat and chicken protein hydrolysates are usually used as raw materials for the industrialized production of Maillard reaction chicken flavor. However, commercial refined chicken fat contains a large amount of anti-oxidant, which is hard to be oxidized by low-temperature heating. It is easy to produce off-flavor for chicken fat when heated at high temperature. In order to form enough chicken flavor precursors for Maillard reaction chicken flavor preparing, we studied the mild thermal oxidation of refined chicken fat based on enzymatic hydrolysis, which was with the lipolytic ratio, fatty and greasy taste as evaluation indexes. …


Study On Volatile Flavor Compounds Of Meat From Yanbian Yellow Cattle, HOU Tingting, NAN Jingxi, LIN Mo, XU Meina, LIU Tian, WANG Juan, LI Guanhao 2018 Agricultural College of Yanbian University, Yanji, Jilin 133000, China; Food Research Center of Yanbian University, Yanji, Jilin 133000, China

Study On Volatile Flavor Compounds Of Meat From Yanbian Yellow Cattle, Hou Tingting, Nan Jingxi, Lin Mo, Xu Meina, Liu Tian, Wang Juan, Li Guanhao

Food and Machinery

Volatile flavor compounds in three parts of meat from Yanbian yellow cattle were analyzed by headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). The extraction fibers were optimized by comparison of 65 μm PDMS/DVB, 75 μm CAR/PDMS and 100 μm PDMS. The results showed that 65 μm PDMS/DVB had the best extraction effect on the volatile components of meat from Yanbian yellow cattle. Furthermore, the volatile components in Longissimus dorsi, rump and Sirloin of Yanbian Yellow Cattle were respectively investigated, and the differences of the volatile components in the three parts were analyzed with principal component analysis. The …


Detection Models Of Mildew Degree In Honeysuckle Based On Hyperspectral Imaging Technology, FENG Jie, LIU Yunhong, WANG Qingqing, YU Huichun, SHI Xiaowei 2018 College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China

Detection Models Of Mildew Degree In Honeysuckle Based On Hyperspectral Imaging Technology, Feng Jie, Liu Yunhong, Wang Qingqing, Yu Huichun, Shi Xiaowei

Food and Machinery

Hyperspectral imaging technology was applied to develop a rapid, accurate and non-destructive detection method for honeysuckle mildew degree levels. The original spectral data were analyzed by three pretreatment methods with Savitzky-Golay (SG) convolution smoothing, Multiple Scatter Correct (MSC) and SG-MSC. A comparison was made among SG, MSC and SG-MSC based on Partial Least Squares (PLS), of which the best pretreatment method was SG-MSC. The Successive Projection Algorithm (SPA) and Competitive Adaptive Reweighted Sampling (CARS) were used to extract the characteristic wavelengths after SG-MSC pretreatment. Partial Least Square Discriminant Analysis (PLS-DA) and Last Squares Support Vector Machine (LS-SVM) were applied to …


Evaluation Of Food Filling Machine Design Scheme Based On Interval Analytic Hierarchy Process And Membership Degree, SHI Hongyan, ZHENG Shuxian 2018 College of Mechanical Engineering, Inner Mongolia University for the Nationalities, Tongliao, Inner Mongolla 028043, China

Evaluation Of Food Filling Machine Design Scheme Based On Interval Analytic Hierarchy Process And Membership Degree, Shi Hongyan, Zheng Shuxian

Food and Machinery

In view of the uncertainty in the evaluation of the design of food filling machine, a new evaluation method for the design of food filling machine was proposed. Firstly, the evaluation index system of the design scheme of the food filling machine was set up, and the grade of the design scheme evaluation and the interval number of the food filling machine were put forward. Moreover, the interval number weight of the evaluation index of the design scheme of the food filling machine was determined by the interval analytic hierarchy process. Furthermore, an evaluation model of food filling machine design …


Frictional Resistance Analysis And Parameter Optimization Of Extruder Screw Based On The Principle Of Continuum Medium Hypothesis, MAO Jun, LU Nan, XIE Miao, LU Jinnan, JIA Kai 2018 School of Mechanical Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, China

Frictional Resistance Analysis And Parameter Optimization Of Extruder Screw Based On The Principle Of Continuum Medium Hypothesis, Mao Jun, Lu Nan, Xie Miao, Lu Jinnan, Jia Kai

Food and Machinery

Based on the hypothesis of continuous medium in theoretical mechanics, the friction resistance model of screw rotary extrusion material was established. The influence of multiple structural parameters of screw on friction resistance was analyzed by using this model, and the range of parameter selection was also given. The friction force between screw and material was the target, and the screw structure parameter was the variable, using Matlab optimization toolbox to optimize the design of screw structure parameters. Moreover, the friction force of the material flow in the optimized screw was analyzed by Ansys. The results showed that the friction stress …


Studies On Α-Lipoic Acid Molecularly Imprinted Membrane And Its Antioxidant Properties, YANG Bowen, CHEN Yuqin, ZHU Qiujin 2018 School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, China

Studies On Α-Lipoic Acid Molecularly Imprinted Membrane And Its Antioxidant Properties, Yang Bowen, Chen Yuqin, Zhu Qiujin

Food and Machinery

Thermo-sensitive α-lipoic acid molecularly imprinted polymers (ALA-MIPs) were synthesized through pre-polymerization using α-lipoic acid as a functional monomer and N-vinylcaprolactam (NVCL) as both thermo-sensitive monomer and functional monomer. Poly(acrylonitrile) (PAN) and Poly(vinylidene fluoride) (PVDF) were used as the main raw material to synthesis molecularly imprinted membranes through the heterogeneous particle-filling method by adding ALA-MIPs. The morphology of the molecularly imprinted membrane(MIM) was investigated by scanning electron microscopy. The mechanical properties, hydrophilic properties, water absorption abilities, and ALA release properties of the membrane were also investigated. The results show that the PVDF membrane has better mechanical properties and hydrophobic properties when …


Digital Commons powered by bepress