Digital Commons Network^™

Improvement Of Antarctic Krill Oil On Reserpine Induced Zebrafish Depression Model, Guo Meng-Jie, Liu Yun, Wu Zhi-Qiang, Jiang Guo-Liang

Food and Machinery

Objective: This study aimed to investigate the effect of Antarctic krill oil on zebrafish model of depression. Methods: The zebrafish (Danio rerio) model of depression was induced by 40 mg/L reserpine, and five groups, i.e., blank control group, model group, fluoxetine group, low-dose krill oil group and high-dose krill oil group were investigated and compared, buy using new tank test (NTT) and light dark box test (LDB). The central nervous system serotonin (5-HT), dopamine (DA), monoamine oxidase A (MAO-A) Interleukin-6 (IL-6), tumor necrosis factor α (TNF-α) and systemic cortisol (COR) levels of the five groups were …

Changes Of Quality Characteristics And Antioxidant Capacities During Fruit Development Of Hardy Kiwifruit, Zhang Liang-Ying, Liu Lin, Yu Li-Jie, Liu Qi, Qi Bian-Bin

Food and Machinery

Objective: This study aimed to provide theoretical basis for hardy kiwifruit quality improvement and rational utilization. Methods: Taking the main variety 'Longcheng No. 2' and line 'Haijia' as experimental materials, the changes of basic quality indexes, contents of total phenolics and flavonoids were analyzed during fruit development. On this basis, the antioxidant capacities were comprehensively evaluated by three assays (FRAP iron reducing ability, ABTS radical scavenging ability and DPPH radical scavenging ability). Furthermore, the differences of total phenolics and antioxidant capacities in different parts of fruit were compared. Results: ① The contents of soluble solids, titratable acids and Vc in …

Antioxidant And Hypoglycemic Activities Of Different Graded Fractions Of Polysaccharide From Goldenmelon, Chen Bing-Jie, Qiao Yong-Jin, Wang Xiao, Wang Chun-Fang, Liu Gui-Ge

Food and Machinery

Objective: The study aimed to research the physicochemical properties, structure, antioxidant activity and hypoglycemic activity of different fractions of polysaccharide of goldenmelon. Methods: Four kinds of goldenmelon polysaccharides (CP-40, CP-60, CP-70, CP-80) were obtained by graded purification of water extraction and alcoholic precipitation. Their molecular weight, monosaccharide composition, group composition, antioxidant and hypoglycemic activities were investigated by high performance liquid chromatography and fourier transform infrared spectroscopy. Results: With the increase of ethanol volume fraction, the total sugar content increased and the glucuronic acid content decreased. The molecular weights of these four polysaccharides were different, which indicated by the same composition …

Effects Of Different Growth Patterns On Nutritional Quality Of Nostoc Commune, Xie Jie-Fei, Wang Chao, Deng Zhong-Yang

Food and Machinery

Objective: Replacing wild resources with artificially cultivated Nostoc commune to protect the natural environment. Methods: Compare the biochemical composition, texture characteristics, and sensory evaluation of indoor, outdoor cultivation and wild N. commune, while using outdoor cultivation of Nostoc sphaeroides as a control in the above three aspects. Results: The ratio of dry weight to wet weight of wild N. commune was the largest （2.42%）, and its hardness and elasticity were the highest, which were 1.184 N and 78.5%, respectively. The content of phycoerythrin and polysaccharide of outdoor N. commune were the lowest, which were 0.19% and 24.45%, respectively. The …

Study On The Effects Of Adding Konjac Refined Flour On The Quality Of Fresh Wet Rice Noodle, Gong Xue, Xie Song-Feng, Xia Zeng-Run, Wang Ai-Xia, Tong Li-Tao

Food and Machinery

Objective: This study aimed to develop konjac rice noodles products with low glycemic index. Methods: The fresh wet rice noodles was made by adding 20%, 10% and 5% konjac refined flour into rice noodles, respectively. The effects of the addition of konjac refined flour on the texture, cooking performance, and sensory quality of rice noodles were studied by texture analyzer and rapid viscosity analyzer. The starch hydrolysis rate, digestion rate, and glycemic index of konjac rice noodles were studied by in vitro digestion model. Results: The cooking loss rate and turbidity of 5% konjac rice noodles were significantly reduced, and …

Effects Of Dynamic High-Pressure Processing On Bioactive Components Of Milk, Ai Zheng-Wen, Xu Zhi-Yuan, Ye Jing-Jin

Food and Machinery

Milk contains a variety of bioactive ingredients, such as lactoferrin and immunoglobulin, which are beneficial to health. Reducing the loss of these proteins during processing has always been the focus of attention. Dynamic high-pressure processing technology, also known as ultra-high-pressure homogenization (UHPH), is one of the relatively novel processing technology means. In this review, the research progress of the heat load intensity and the retention of key nutrients in the processing of dairy products were summarized from the aspects of Maillard reaction products, lactoferrin, immunoglobulin and other bioactive ingredients and vitamin loss. Moreover, the development direction of ultra-high-pressure homogenization in …

Structure, Working Principle And Application Of Mechanical Shell Breaker, He Ting, Zhang Rui, Ren Guang-Yue, Duan Xu, Li Cai-Yun, Li Ya-Chun

Food and Machinery

Shelling rate and kernel breaking rate are the two key indicators of shelled materials, and mechanical shelling is one of the important methods to improve these key indicators. In this paper, the common mechanical shelling methods, mechanical shelling types, mechanical shelling principles and development status of shelling materials were analyzed. The advantages and disadvantages of mechanical hulling equipment were summarized, and suggestions were made for the problems existing in the current application of mechanical hulling.

Research Progress Of Polyphenols In Edible Plant Enzymes, Yin Xiao-Qing, Wen Hua-Ying, Zhang Yu-Hong, Bai Ting, Wang Shan-Shan

Food and Machinery

Polyphenol is one of the characteristic physical and chemical indexes of edible plant enzyme, which has the effects of anti-oxidation, reducing fat and anti-tumor. This paper reviews the composition of polyphenols in food plant enzyme products, the factors affecting the formation of polyphenols in food plant enzyme products, the health care effects of polyphenols, and the further research directions of polyphenols in edible plant enzymes are also prospected.

Advances In Non-Thermal Treatment Techniques To Control Yogurt Post-Acidification, Niu Yu-Qin, Wang Chen-Yuan, Zhao Pei, Li Shu-Sen, Liu Ju-Long, Sun Er-Na, Wu Zi-Jian

Food and Machinery

Post-acidification is one of the most important factors affecting the sensory quality, flavor characteristics and stability of yogurt during shelf-life. Non-thermal treatments are novel methods to control post-acidification, which can maintain the original nutritional properties and sensory quality of food to the maximum extent. In this paper, the mechanism of post-acidification of lactic acid bacteria was reviewed. The mechanism and recent research progress of non-heat treatment processes such as ultra-high pressure, ultrasound, pulsed electric field, CO₂ treatment, irradiation were analyzed and provided theoretical guidance for the development and industrial application of non-heat acid control technology.

Plasma Assisted Ultrasonic-Assisted Extraction Of Chitin From Crayfish Shell By Weak Acid And Weak Base Method, Ding Zijun, Li Jinlin, Fu Yingfei, Zhang Qiuxia, Mao Yiying, Wang Wei, Peng Bin, Tu Zongcai, Zhou Yan

Food and Machinery

Objective: To explore a green and efficient method for extracting chitin. Methods: The crayfish shells were crushed through three mesh sieves to obtain the raw material. Utilizing ultrasonic wave and citric acid and urea to remove calcium and protein from the sample, decolorize it with hydrogen peroxide, filter it, and then dry it to produce chitin products. The particle size of the chitin sample was analyzed by laser scattering particle size distribution analyzer. Infrared absorption characteristics were measured by an infrared spectrometer. Scanning electron microscopy was used to observe the apparent structure of the sample. Results: It was shown that …

Amino Acid Characteristics And Nutritional Evaluation Of Flammulina Filiformis Protoplast Hybrid Strains, Lu Huan, Liu Jianyu, Shang Xiaodong, Yang Hui, Wu Yansha, Wang Ruijuan

Food and Machinery

Objective: This study aimed to investigate the quality differences among different hybrid enoki mushrooms （Flammulina filiformis） strains and breed new strains with high quality. Methods: Two different protoplast monocytes of yellow enoki mushrooms Fv1923 were used as one of the parents to cross with 6 enoki mushrooms protoplasts （2 yellow and 4 white strains）, and a total of 12 yellow hybrid strains were obtained. Principal component analysis and cluster analysis were used to evaluate the free amino acids of 12 hybrid strains, and the flavor diversity of different protoplast hybrid strains was also evaluated. Results: The average contents …

Research And Application Progress Of Cold-Chain Logistics Packaging Technology Of Fresh Agricultural Products, Xiang Mingyue

Food and Machinery

Cold chain logistics packaging technology is crucial for the operation of perishable food chains （such as meat, fish, dairy products, fruit and vegetable products） and certain products in the pharmaceutical industry （such as vaccines, biopharmaceuticals, and blood products）. In the future, the cold chain logistics packaging of fresh agricultural products will tend towards high-performance, environmentally friendly, and digital development. The article reviews the packaging technologies used in the cold chain logistics of fresh agricultural products in recent years. Analyzes the characteristics, use value, application scope, technical advantages and disadvantages of different packaging materials, and analyzes the potential cold chain logistics …

Apple Surface Defect Detection Based On Improved Cnn And Data Augmentation, Pi Wei, Qu Xilong, Wang Shaocheng, Li Qingchun

Food and Machinery

Objective: Improve the detection accuracy and efficiency of apple surface defects. Methods: An detection method for apple surface defects was established based on an improved convolutional neural network (CNN) and data augmentation method. Firstly, the classical CNN was improved to detect apple surface defects. Then, using the conditional generation adversarial network, the image data of surface defect free and defective apples was augmented with synthetic apple images to improve the detection performance of the improved CNN for apple surface defects. Finally, by pruning the CNN model, the detection accuracy, detection speed and energy saving limits of apple surface defects were …

Nutritional Challenges Of Substituting Farmed Animals For Wild Fish In Human Diets, Sebastian A. Heilpern, Rafael M. Almeida, Kathryn J. Fiorella, Alexander S. Flecker, Demetra Williams, Peter B. Mcintyre

School of Earth, Environmental, & Marine Sciences Faculty Publications

Wild fisheries provide billions of people with a key source of multiple essential nutrients. As fisheries plateau or decline, nourishing more people will partially rely on shifting consumption to farmed animals. The environmental implications of transitions among animal-sourced foods have been scrutinized, but their nutritional substitutability remains unclear. We compared concentrations of six essential dietary nutrients across >5000 species of wild fishes, aquaculture, poultry and livestock species, representing >65% of animals consumed globally. Wild fishes are both more nutrient-dense and variable than farmed animals; achieving recommended intake of all nutrients with farmed species could require consuming almost four times more …

Effects Of Hydroxyl Safflower Yellow A On Lipopolysaccharide Induced Depression Model Rats, Yiming Gaghafu, Mian Qiang-Hui, Han Nan-Yin, Abudureyimu Yusufu

Food and Machinery

Objective: This study aimed to investigate the antidepressant effect of hydroxyl safflower yellow A on rats induced by lipopolysaccharide. Methods: The depression model of rats was established by intraperitoneal injection of LPS. The normal control group, the model group, the positive control group and the hydroxyl safflower yellow A groups with different doses were set up, and the depression like behavior of rats was evaluated. The contents of TNF-α, IL-1β, IL-6 and BDNF, 5-HT in serum of rats were determined, and the histopathological changes of hippocampus were observed. The protein expression of TLR/NLR signaling pathway was detected. Results: …

Effects Of Ethanol And Methyl Jasmonate Fumigation On The Quality Of Bamboo Shoots During Storage, Xu Jing-Yang, Ji Ning, Wang Rui, Zhang Ni, Liu Ren-Chan, Wang Si-Yuan, Deng Yun-Bing

Food and Machinery

Objective： This study aimed to provide a basis for the post-harvest storage and preservation of fresh shoots from bamboo (Chimonobambusa quadrangularis). Methods: Fresh bamboo shoots were fumigated with 500 μL/L anhydrous ethanol and 0.1 mmol/L MeJA, and distilled water was used as blank control (CK) to determine the storage period, i. e. temperature (1.0±0.3) ℃ and relative humidity (90±5)%. The respiratory intensity, hardness, browning index, soluble protein, and activity of PAL, POD, PPO and APX were detected. The quality differences of fresh bamboo shoots during storage were analyzed using principal component analysis. Results: Combined fumigation treatment can reduce …

Fermentation Process Optimization And Flavor Composition Analysis Of Plum Peppermint Wine, Guo Ming-Yi, Deng Yan, Du Qian-Hong, Wu Hua-Chang

Food and Machinery

Objective: In order to develop and enrich fruit wine categories and diversify sensory levels, plum and peppermint were chosen out as the main materials for fermenting a compound fruit wine. Methods: Single factor test and response surface test were used to analyze the effects of mint addition amount, initial sugar degree, initial pH value and fermentation temperature on the alcohol and quality of plum peppermint wine. The fermentation process was optimized, and its sensory was analyzed. Moreover, the sensory, physical and chemical indexes and volatile components were detected. Results: The optimum fermentation conditions were as follows: peppermint content 18%, initial …

Optimization Of Complex Enzymatic Extraction Process Of Steroidal Glycosides From Cynanchum Auriculatum Royle Ex Wight And Its Hepatoprotective Activity, Song Wan-Yu, Dai Jing, Feng Jin, Li Chun-Yang, Ma Yong-Qiang

Food and Machinery

Objective: Response surface methodology was used to optimize the extraction process of steroidal glycosides from Cynanchum auriculatum Royle ex Wight by complex enzymatic method, and its effects on alcohol dehydrogenase activity and human hepatoma cell HepG2 were analyzed. Methods: Four experimental factors; enzymolysis duration, temperature, compound enzyme dose and pH were used as responses to a single-factor experiment of the Response Surface Methodology on the steroidal glycoside yields, using perennial C. auriculatum as the target material. The alcohol-induced hepatocyte damage model of HepG2 was used to investigate the contents of ALT, LDH, and GSH and changes in cell shape. Results: …

Research Progress In Nutritional Composition And Biological Function Of Grape Seed Extracts, Zhou Xiang-Hui

Food and Machinery

Grape seed extracts, due to its strong antioxidant activity, is commonly used as a nutritional supplement or dietary supplement. It can be used to prevent metabolic diseases such as inflammation, tumors, and atherosclerosis. This article provides an overview of the nutritional composition and biological functions of grape seed extracts, summarizes the latest research findings on the bioactive ingredients in grape seed extracts in terms of antioxidant, anti-inflammatory, anti-tumor, antimicrobial, and anti-atherosclerosis effects, and discusses the shortcomings and future research directions in grape seed extracts research.

Homogenization And Thermal Processing Reduce The Concentration Of Extracellular Vesicles In Bovine Milk, Anna P. Colella, Anuradha Prakash, John Miklavcic

Food Science Faculty Articles and Research

Extracellular vesicles (EVs) in bovine milk confer beneficial physiologic effects to consumers. Industrial processing treatments may affect the amount or bioactivity of EVs intrinsic to bovine milk. We investigated how the content and concentration of EVs were affected by homogenization and thermal processing of raw bovine milk. Raw milk was processed by homogenization, low-temperature (LT) heat, or pasteurization [high-temperature short-time (HTST) and ultra-high-temperature (UHT)] in a pilot processing facility. EVs were isolated from the raw and processed bovine milk using differential ultracentrifugation and quantified using a nanoparticle tracking analyzer. Bovine milk EVs were assessed for total miRNA and protein concentrations …

Kluyveromyces Marxianus Prepared As A Ready To Use Supplemental Food (Rusf), Zachary Christman

Applied Science Program: Theses

Ready to Use Supplemental Food (RUSF) is a nutrient dense paste or compressed bar used to supplement a person’s nutritional needs because of malnutrition or due to food shortages. The purpose of this article is to demonstrate some methods of how the dairy organism Kluyveromyces marxianus can be used to enrich the protein value of bread or ferment a substrate such as wheat bran into a more digestible form.

Editorial: Research Advances Of Modification And Nutrition Properties Of Food Carbohydrates, Volume I, Yanjun Zhang, Jianhua Xie, Bin Li, Srinivas Janaswamy

Dairy Science and Food Science Faculty Publications: 2022 to Present

As a group of essential biopolymers, carbohydrates exist widely in living organisms and play many known and unknown biological roles in life activities via different pathways. Carbohydrates are widely used in foodstuffs, pharmaceuticals, biofuels, and biomaterials, to name a few. Parallelly, a growing understanding and deeper investigation drive the development of natural carbohydrates for novel applications, especially for treating chronic diseases, e.g., hyperlipidemia, obesity, and diabetes. The emerging evidence indicates that carbohydrates are effective for modulating gut microbiota, a vital organ in health and diseases. In addition, modifying carbohydrates alters and/or enhances nutrition properties, further expanding their application potential. Notably, …

The Role Of Alcohol Extract Of Cranberry In Improving Serum Indices Of Experimental Metaproterenol-Induced Heart Damage In Rats, Kimia Salmasi, Ali Hassanpour, Bahram Amouoghli Tabrizi, Sina Moghaddam

Faculty, Staff and Students Publications

Cranberry offers numerous cardiovascular benefits. According to several studies, this fruit promotes the oxidation of low‐density lipoprotein, enhances high‐density lipoprotein, reduces platelet coagulation, and improves vascular activity. Albino male rats were divided into five groups (n = 5 per group). The control group received intraperitoneal administration of normal saline. The second group was injected with metaproterenol (MET) 3 days a week for 4 weeks. The third, fourth, and fifth groups were given cranberry extract in doses of 75, 100, and 150, respectively, along with heart‐damaging drugs. Blood samples were collected and sent to the laboratory on the fourth weekend …

Growing South Dakota (Fall 2023), College Of Agriculture, Food And Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 3 Back-to-Back Champions: SDSU Quarter Scale Tractor Team Repeats International Win
[Page] 6 CAFES Welcomes New Members to College Leadership Team
[Page] 9 Vikram Mistry Retires After Nearly 40-Year Career at SDSU
[Page] 12 Bill Gibbons Retires After 36 Years at SDSU
[Page] 13 Nic Uilk: Klingbeil Endowed Educator in Precision Agriculture
[Page] 15 SDSU Students Study Abroad
[Page] 19 CAFES Faculty Claim National Awards
[Page] 21 Dairy Alum Sanne de Bruijn Grabs Global Opportunities
[Page] 23 SDSU Extension Cohort Programs
[Page] 25 Summer Field Day Highlights
[Page] 29 Jackrabbits Now and Then

Effective Enhancement Of Post-Harvest Tomato Storage Through Wrapping Using Deacetylated Chitin Nanofibril-Plasticized Honey Films, Ngesa Ezekiel Mushi, Edina Meela, Divina Kaombe

Tanzania Journal of Science

As one of the most grown seasonal fruit, tomato is widely consumed for making food products, drugs and ornaments. However, poor post-harvest handling system, transport and storage facilities deteriorate the quality of tomato fruits resulting into post-harvest losses. These problems have been addressed by the use of nanotechnology in this study. The combination of a chitosan surface and the core shell chitin results into novel deacetylated chitin nanofibril (DeChNF) with good biological activity and mechanical strength. The effectiveness of the DeChNF films for food preservation as an alternative material to chitosan is investigated. The DeChNF with degree of acetylation (DA) …

Piperine Encourages Apoptosis In Human Cervical Adenocarcinoma Cells Through Ros Generation, Dna Fragmentation, Caspase-3 Activation And Cell Cycle Arrest, Asif Jafri, Juhi Rais, Sudhir Kumar, Md Arshad

Research Symposium

Background: Cancer is one of the most common destructive diseases and the second leading cause of death in humans. Among cancer, cervical cancer is the second most common malignancy among women globally. Thus, there is a continuous need to search for chemotherapeutic chemicals or naturally occurring drugs to resolve this global health problem. Piperine (1-piperoylpeperdine) is present in the fruits of black pepper (Piper nigrum Linn.) and long pepper (Piper longum Linn.). It possesses several pharmacological properties and in the present study we have evaluated its anti-cancer potential on human cervical adenocarcinoma (HeLa) cells.

Methods: The anti-proliferative effect …

Determination Of Vitamin C Stability In Different Packaging Materials At Refrigerated Conditions By Hplc Analysis, Pallavi R, Sushmitha Kc, Anilakumar Kr, Vanitha Reddy P

International Journal of Health and Allied Sciences

The stability of Vitamin C depends on storage temperature, time, and packaging material. Vitamin C is known to prevent the oxidation of low-density lipoprotein primarily by scavenging the free radicals and other reactive oxygen species in the aqueous milieu, ascorbic acid combats cancer by promoting collagen synthesis and thus prevents tumors from invading other tissues. Aim: The present study aims at investigating the Vitamin C content of two citrus fruits under refrigerated conditions after a specific time interval, in different packaging materials. Material: In the present study, two citrus fruits – Amla & Lemon were used to study the stability …

Short-Weighting, Species Authentication, And Labeling Compliance Of Prepackaged Frozen Shrimp Sold In Grocery Stores In Southern California, Mckenna C. Rivers, Alexia B. Campbell, Chris Haneul Lee, Pragati Kapoor, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Shrimp is the most-consumed seafood product in the United States; however, there is a lack of research into the extent of short-weighting and mislabeling of shrimp in the commercial marketplace. The objective of this study was to investigate frozen shrimp for Country of Origin Labeling (COOL) compliance, species authentication, acceptable market names, net weights, and percent glaze. A total of 106 frozen shrimp packages were purchased from grocery stores in Southern California. Samples were considered COOL compliant if both the procurement method and country of origin were reported at the point of sale. Species authentication and acceptable market names were …

Protein Enriched Bread Using Spent Wine Yeast, Zachary Christman

Applied Science Program: Theses

Yeast is a common byproduct of wine production. Wine yeast may be used as a food source. It does not contain bitter and astringent compounds such as those present in spent yeast from making beer The use of nutritional yeast and yeast extract for protein enrichment of bread are presented in this article.

Physical Treatments To Modify The Functionality Of Carrot Pomace And The Development Of An Enhanced Beef Patty, Jordan O.A Richards

Master's Theses

Approximately one-third of the global food produced for human consumption is lost or wasted somewhere along the food chain. Carrots are one of the most important and widely produced root vegetables grown worldwide; they are rich in many beneficial bioactive compounds such as dietary fiber and carotenoids. Every year, an estimated 29% of processed carrots are lost as waste. The U.S. is the 3^rd largest producer of carrots worldwide, 85% of which come from California. During carrot juice processing, up to 50% of the raw material remains as carrot pomace. Carrot pomace may contain up to 55% total dietary …