Food Science Commons^™

Effects Of Active Peptide Components Of Eupolyphaga Steleophaga On Blood Rheology, Four Indicators Of Blood Lipids And Blood Factor Levels In Rats With Acute Blood Stasis, Jiang Shan, Wang Shao-Ping, Dai Long, Zhang Jia-Yu, Gao Peng, Liu Zi-Han, Wang Yu-Qi

Food and Machinery

Pepsin and trypsin complex enzymes were used for biomimetic enzymatic hydrolysis of Eupolyphaga steleophaga. In order to obtain the most active fibrinolytic activity of the soil aphid active peptide component F2, the product was subjected to desalting, ultrafiltration, nanofiltration, DA201-C macroporous adsorption resin, dextran gel G-25 chromatography, reverse high performance liquid chromatography and semi-preparative liquid chromatography. Moreover, its effects on hemorheology index, blood lipids and serum nitric oxide (NO), superoxide dismutase (SOD), tissue plasminogen activator (t-PA) and fibrin (FIB) content of rats with acute blood stasis were also studied. E. ste-leophaga active peptide component F2 could significantly reduce blood …

Synergistic Effects Of Dendrobium And Pueraria Thomsonii On Hpyerglycemic And Lipid-Lowing Between In Vitro And In Vivo, Xu Zi-Yang, Jing Si-Qun, Lin Yin-Jun, Ding Jia-Min, Zhou Yang, Yu Bai-Yin

Food and Machinery

The synergistic effects were observed on inhibiting alpha-glucosidase activity between Dendrobium and Pueraria thomsonii form self-made chewable tablets by taking the acarbose as control. Drosophila melanogaster was used as experimental animal, and the model of Ⅱ diabetic Drosophila melanogaster was prepared by high glucose and high fat feeding. The experiment was divided into model control group, positive control group, Dendrobium (D) group, Pueraria thomsonii (PT) group and (Dendrobium + Pueraria thomsonii) (D+PT) group. After 7 days of lipid-lowering effects between Dendrobium and Pueraria thomsonii was analyzed. results showed that all of groups dose-effect perfusion, the total protein, triglycerides …

Optimization Of The Extraction Process Of Polysaccharides From Euglena And Its Antioxidant Activity, Ge Zhi-Chao, Li Yan, Shi Wen-Zheng, Lang Meng

Food and Machinery

Taking the euglena as the raw material, the extraction of euglena polysaccharide by ultrasonic-assisted enzymatic method and the optimal extraction conditions were studied, from the ultrasonic power, ultrasonic time, enzymolysis time, and enzyme concentration by response surface analysis(RSA) based on single factor tests. The results showed that the optimal process parameters were: ultrasonic power 360 W, ultrasonic time 19 min, neutral protease addition 3.7%, enzymatic hydrolysis time 3.5 h. Under the conditions, the yield of euglena polysaccharide reached 3.68%. The euglena polysaccharide (EGPS) was separated to three different ranges of molecular weight by ultrafiltration membrane, which were 35, 510 and …

Effect Of Haematococcus Pluvialis On Baking Quality Of Bread, Wang Bao-Bei, Dai Zi-Wei, Liu Lu-Lu, Chen Wen-Xuan

Food and Machinery

In this study, H. pluvialis was applied into bread to study its effect on baking quality. The results showed that the addition of H. pluvialis increased redness and yellowness of bread, and decreased the brightness. The specific volume of bread decreased slightly, but the moisture content did not change a lot with the addition of H. pluvialis. Within the content range studied, the hardness, stickiness and chewiness of bread increased gradually with increasing H. pluvialis, while the elasticity, resilience and cohesion did not change significantly. Similarly, during storage process, H. pluvialis had little effect on the changes of …

Effect Of Wheat Flour Substitution Withlily Powder On Properties Of Dough And Quality Of Bread, Li Jia-Yi, Tan Xuan-Yu, Zou Jin-Hao, Wang Feng, Su Xiao-Jun

Food and Machinery

In order to broaden the application of lily flour, wheat powder substituted with lily flour was applied in bread to improve nutrient value. The effects of wheat flour substitution with lily powder (0%, 5%, 10%, 15%, and 20%) on the microstruc-ture, pasting properties and rheological properties of dough and the quality of bread were investigated. The results showed that the water holding capacity increased significantly (P＜0.05) as the percentage of lily powder increased, while oil holding capacity first decreased and then increased. The addition of lily flour destroyed the compact and uniform microstructure of gluten. The pasting temperature of the …

Effects Of Different Pretreatment Methods On The Quality Characteristics Of Red Rose By Hot Air Drying, Zhang Meng, Duan Xu, Ren Guang-Yue, Zhou Si-Qing, Xu Yi-Ming

Food and Machinery

In order to understand the effect of different pretreatments on the hot air drying characteristics and quality of red rose, four different pretreatment methods ,i.e. impregnated 5% citric acid solution, 20% sugar solution, 20% NaCl and citric acid mixed solution and blanching, the pretreated petals were used as the control, to conduct comparative experiments and analysis of hot air drying. Sensory properties (color, total flavonoids, total phenols) and microstructure of red rose were examined, and combined with fuzzy mathematical comprehensive evaluation method for sensory evaluation. The results showed that drying rate of rose petals was influenced significantly by different pretreatment …

Study On Synchronous Extraction Process Of Oil And Protein From Prunus Mira Nut And The Oil Quality Analysis, Kan Jin-Tao, Yuan Lei, Zhong Zheng-Chang

Food and Machinery

Taking the Prunus mira nut as raw material, the oil and protein of were synchronous extracted by aqueous extraction method combined with enzymatic demulsification, the extraction process was optimized by orthogonal tests based on single factor experiment. The main physicochemical indexes of Prunus mira nut oil were determined, and the fatty acid compositions were analyzed by GC. The results indicated that the Prunus mira nut protein yields were(78.13±1.53)%, and oil total yields were(67.79±2.97)%, the optimal oil and protein extraction process were obtained as followed: sample size 150 mesh, liquid-solid ratio 8：1 (mL/g), pH 10, extraction temperature 50 ℃, extraction time …

Optimization Of Fermentation Process And Analysis Of Antioxidant Capacity Of Purple Sweet Potato Powder, Song Ying, Liu Si-Han, Chang Xia, Hou Yu-Hao, Xie Qiu-Tao, Yuan Hong-Yan, Li Gao-Yang

Food and Machinery

Based on the single factors, the response surface tests were used to optimize the process conditions of low-sugar yeast fermentation of the purple sweet potato to prepare high antioxidant activity powder, and the changes of total flavonoids, total phenols, anthocyanins and antioxidant capacity before and after fermentation were investigated. The optimum fermented conditions were determined as follows: 0.95% yeast addition, 10：22 (g/mL) ratio of feed to liquid, fermentation at 23 ℃ for 16 h. The antioxidant capacity was 404.94 mg VCEAC/100 g, with a total phenol content of 123.85 mg GAE/100 g, a total flavonoid content of 610.64 mg rutin/100 …

Research Progress On Anaerobic Fermentation Mechanism And High-Density Anaerobic Fermentation Of Clostridium Butyrate, Wu Tian-Fu, Xie Xiao-Lin, Chen Mei-Biao, Zhou Lian, Chen Meng, Deng Ming-Rong, Yao Qing, Zhu Hong-Hui

Food and Machinery

In this paper, the mechanism of anaerobic fermentation of Clostridium butyrate, the mode of high-density anaerobic fermentation and the application of bioreactor are rviewed in order to realize the high-density fermentation of Clostridium butyrate in industrial production by improving the anaerobic fermentation process or improving the fermentation equipment, so as to greatly increase the number of live bacteria and reduce the production cost.

Research Progress On Degradation Technology Of Harmful Gases In Granary, Pan Di, Ma Ting-Jun, Kang Kai, Bai Shu-Pei

Food and Machinery

There were many harmful gases in the process of storing grain in large granaries, which can not only cause environmental pollutions, but also endanger people's health. Reducing harmful gases in granaries and ensuring grain quality had become the focus of food storage industry. In this paper, the sources, types and harms of harmful gases produced in the process of grain storage were briefly described, and the relative degradation methods, principles, advantages and disadvantages of phosphine, were also introduced in detail. Furthermore, the feasibility of degradation of harmful gases in granary by plasma technology was emphasized, and the problems to be …

Construction And Unitization Verification Of Diffusion And Backmixing Model For Continuous Countercurrent Extraction Of Astragalus Polysaccharide, Mao Lin-Lu, Sun Peng-Yao, Zhang Xia, Li Lin, Li Yu-Ting, Liang Yi, Li Bing

Food and Machinery

In order to realize the accurate description of the extraction process of continuous countercurrent extraction (CCE) for Astragalus polysaccharides, a mathematical model of diffusion and backmixing was established and solved. The two-phase solute distribution in the single-flow continuous countercurrent extractor was described. The scale for describing the pilot scale was established. The diffusion back-mixing numerical model of the two-phase solute distribution in the extractor was tested by multi-effect simulation CCE of Astragalus polysaccharides. The results showed that the extraction temperature was 40~70 ℃, and the solid-liquid ratio was 1：6~1：14 (g/mL), within the single factor variation range of extraction time …

Study On The Sources Of Nickel In Jujube Fruit, Yan Qiao-Li, Hua Zhen-Yu, He Wei-Zhong, Tao Yong-Xia, Wang Cheng

Food and Machinery

Through the analysis of the total content of heavy metal nickel in soil, pesticide, fertilizer, farmyard manure and atmospheric dust samples, the exogenous input pathway of heavy metal nickel in jujube in typical areas was determined. ICP-MS (inductively coupled plasma mass spectrometry) was used to analyze the content of heavy metal nickel in the samples. The results showed that the tested soil and fertilizer samples contained heavy metal nickel in the range of 17.194~67.279 and 0.450~26.800 mg/kg, respectively. The total content of nickel in chicken manure, bioorganic fertilizer, amino acid water-soluble fertilizer and phosphate fertilizer was relatively high. In the …

Distribution And Correlation Of Pb Between Procambarus Clarkii And Aquaculture Environment In Hunan Province, Tian Jin-Jin, Zhu Yu-Lin

Food and Machinery

She sampling survey was used to sample the cultured P. clarkii and the environment from the freshwater shrimp breeding base in Hunan province. Tested the Pb content and performed statistical analysis on the relevant data. The results showed that the Pb content in shrimp, culture water and bottom sediment was Yiyang＞Yueyang＞Changde city in Hunan province. Among them, Yiyang city had the highest Pb over-standard rate, which was 63%. Significant differences in Pb content in shrimp head, tail, and water sediments were found in different city (P＜0.05), and Pb content between different city of culture water are not statistically significant differences …

A Vision-Based Image Detecting System For Cigarette Tipping Machine, Wu Chen-Gang, Yang Chen, Xie Chong-Quan, Zhang Rui-Ping

Food and Machinery

In this paper, a kind of cigarette tipping paper detection system based on machine vision is proposed, which uses STM32 as the core controller to control the timing synchronization of the coiler. The cigarette tipping paper on the transition drum is collected by the industrial camera, and the length of the cigarette paper is calculated and measured, and the unqualified cigarette is eliminated. At the same time, the unqualified cigarette tipping paper and detection data are recorded by the guide rail scale. Through practical application, the detection accuracy of the system is better than ±0.05 mm, and the maximum detection …

Design Of Wireless Sensor Network For Fresh Food Supply Chain Management Based On Network Topology, Liu Yong-Li, Hou Qing-Feng

Food and Machinery

Environmental monitoring during transportation is the key of fresh food supply-chain management. It provides important information for assessing food quality and predicting shelf life. Based on Zigbee standard wireless sensor network (WSN), a real-time monitoring system for fresh food supply chain was developed and designed in this study, and the configurable architecture and network switching scheme of integrated sensors was also improved to meet the practical application requirements. In terms of performance, the tree topology wireless sensor network system of 192 terminal devices and star topology wireless sensor network system of 80 terminal devices were implemented and evaluated. The test …

Moisture Sorption Behavior And Shelf Life Prediction Of Teff Seed And Flour, Baba Abdissa, Rudrayya Math, Kodandaramreddy Desham, Srinivasulu Korra

Journal of Applied Packaging Research

Moisture sorption isotherms of Teff seed and its flour were determined over the range of relative humidity (11–92%) using a gravimetric technique at constant temperature (27°C). The results obtained showed that the moisture sorption isotherm of both is almost similar and sigmoid with increasing equilibrium water content at the constant temperature. The curves start raising high above 64% RH indicating the products deteriorates faster above 64% RH. Hence the moisture content equilibrating to 64% RH was taken as critical for both Teff seed and flour variants. The sorption isotherm fits the GAB equation as per GAB generalized equation for sorption …

Labeling Compliance And Species Authentication Of Fish Fillets Sold At Grocery Stores In Southern California, Priscila Liou, Angela Banda, Rachel B. Isaacs, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Seafood mislabeling has numerous consequences, including economic deception and food safety risks. The focus of this study was to investigate fish species labeling, use of acceptable market names, and Country of Origin Labeling (COOL) compliance for fresh fish fillets sold at grocery store seafood counters in Southern California. A total of 120 fillets representing 16 different categories of fish were collected from 30 Perishable Agricultural Commodities Act (PACA)-listed grocery stores. Each sample underwent DNA barcoding to identify the species. Acceptable market names were confirmed using the FDA Seafood List. Samples were determined to be compliant with COOL if both …

Metformin Uptake And Translocation In Chickpeas: Determination Using Liquid Chromatography−Mass Spectrometry, Brett Nespor, Anastasia Andrianova, Sean Pollack, Creighton Pfau, Muhammad Arifuzzaman, Nazrul Islam, Alena Kubatova, Khwaja Hossain

Chemistry Faculty Publications

Multiple chronic conditions (MCCs) such as diabetes, hypertension, heart disease, arthritis, asthma, and common respiratory problems are prevalent in over one-fourth of Americans, and separate drugs are prescribed to manage each of the diseases. The nutritive crop seeds loaded with multiple drugs could be a cheap and sustainable alternative to drugs produced by pharmaceutical companies. Our long-term goal is to produce chickpea seeds containing comparable dosages of multiple drugs regularly prescribed for managing MCC. In this work, we conducted experiments to understand the uptake and translocation of metformin into the tissues of chickpea to demonstrate the applicability of LC–HR-ToF-MS in …

Sodium Propionate And Sodium Butyrate Promote Fatty Acid Oxidation In Hepg2 Cells Under Oxidative Stress, Kristina Jazmin Cook

LSU Doctoral Dissertations

Non-alcoholic fatty liver disease (NAFLD) is a spectrum of disturbances that includes simple steatosis, non-alcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and liver cancer. NAFLD affects individuals that consume the typical Western diet consisting of high levels of fats and carbohydrates. The increase in circulating free fatty acids, palmitate and oleate, or lipopolysaccharides (LPS), induce oxidative stress and pro-inflammatory cytokine production in the liver, which all contribute to NAFLD progression. In this study, we are evaluating the mRNA expression of genes associated with fatty acid oxidation (FAO) and the protein expression of pro-inflammatory cytokines related to NAFLD using the HepG2 human liver …

Antiproliferative And Apoptotic Effects Of Proteins From Black Seeds (Nigella Sativa) On Human Breast Mcf-7 Cancer Cell Line, Yamna Khursid, Basir Syed, Shabana U. Simjee, Obaid Beg, Aftab Ahmed

Pharmacy Faculty Articles and Research

Background

Nigella sativa (NS), a member of family Ranunculaceae is commonly known as black seed or kalonji. It has been well studied for its therapeutic role in various diseases, particularly cancer. Literature is full of bioactive compounds from NS seed. However, fewer studies have been reported on the pharmacological activity of proteins. The current study was designed to evaluate the anticancer property of NS seed proteins on the MCF-7 cell line.

Methods

NS seed extract was prepared in phosphate-buffered saline (PBS), and proteins were precipitated using 80% ammonium sulfate. The crude seed proteins were partially purified using gel filtration …