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Soy protein

Zhaozhi Huang, Ingolf Gruen, Bongkosh Vardhanabhuti
The goal of our study was to investigate the effect of alginate on in vitro gastric digestion and sucrose release of soy protein isolate (SPI) in model beverages. Model beverages containing 5% w/w SPI, 0% to 0.20% w/w alginate, and 10% w/w sucrose were prepared by heating the mixtures at 85 °C for 30 min at pH 6.0 or 7.0. Characterizations of beverages included determination of zeta potential, particle size and rheological properties. Digestion patterns and sucrose release profiles were determined during 2 hr in vitro gastric digestion using SDS-PAGE and HPLC analysis, respectively...
June 15, 2018: Journal of Food Science
Bidisha Paul, Yuanyuan Li, Trygve O Tollefsbol
Dietary compounds that possess the properties of altering epigenetic processes are gaining popularity as targets for cancer prevention studies. These compounds when administered at optimal concentrations and especially in combination can have enhanced effects in cancer prevention or therapy. It is important to study the interaction of two or more compounds in order to assess their role in enhancing prevention. Genistein (GEN), found in soy, has been extensively studied for its role as an epigenetic modifier especially as a DNA methyltransferase (DNMT) inhibitor and sulforaphane (SFN), found in cruciferous vegetables, is known as a histone deacetylase (HDAC) inhibitor...
June 13, 2018: International Journal of Molecular Sciences
M Jane Brennan, Sydney E Hollingshead, Jonathan J Wilker, Julie C Liu
Many protein-based materials, such as soy and mussel adhesive proteins, have been the subject of scientific and commercial interest. Recently, a variety of protein adhesives have been isolated from diverse sources such as insects, frogs and squid ring teeth. Many of these adhesives have similar amino acid compositions to elastomeric proteins such as elastin. Although elastin is widely investigated for a structural biomaterial, little work has been done to assess its adhesive potential. In this study, recombinant elastin-like polypeptides were created to probe the factors affecting adhesion strength...
May 2018: Royal Society Open Science
Kelsey DeFrates, Theodore Markiewicz, Pamela Gallo, Aaron Rack, Aubrie Weyhmiller, Brandon Jarmusik, Xiao Hu
Nanoparticles are particles that range in size from about 1⁻1000 nanometers in diameter, about one thousand times smaller than the average cell in a human body. Their small size, flexible fabrication, and high surface-area-to-volume ratio make them ideal systems for drug delivery. Nanoparticles can be made from a variety of materials including metals, polysaccharides, and proteins. Biological protein-based nanoparticles such as silk, keratin, collagen, elastin, corn zein, and soy protein-based nanoparticles are advantageous in having biodegradability, bioavailability, and relatively low cost...
June 9, 2018: International Journal of Molecular Sciences
Yue Zhao, Qingguan Liu, Shuang Zhang, Lianzhou Jiang, Yang Liu, Cuiping Han
The present study compared the texture, water holding capacity, and microstructure, as well as performed a particle and sensory evaluation, of soymilk-cow's milk gels induced by acidification of a commercial starter culture with the addition of glucono-δ-lactone (GDL). Texture analysis indicated that gels made with different amounts of GDL had diverse properties. The water holding capacity (WHC) results suggested that the gels had some WHC differences. In addition, the gels with less GDL did not form a network structure...
June 7, 2018: Journal of Oleo Science
Suman Mohajan, Tania N Orchy, Tasnim Farzana
The research study was conducted to evaluate the effect of soy flour on functional, nutritional, and sensory properties of mushroom-moringa-supplemented soup which could be used as a protein-supplemented ready-to-eat food. In this study, corn flour was supplemented with soy flour at different levels such as 20% (T4), 15% (T3), 10% (T2), and 5% (T1), and without soy flour was kept as control (T0). Fixed amount of mushroom and moringa leaf powder was added in all soup powders. Soup powders were analyzed for functional, nutritional, and sensory parameters...
May 2018: Food Science & Nutrition
Deepti P Karumathil, Meera Surendran Nair, James Gaffney, Anup Kollanoor-Johny, Kumar Venkitanarayanan
Multi-drug resistant (MDR) Acinetobacter baumannii is a major nosocomial pathogen causing a wide range of clinical conditions with significant mortality rates. A. baumannii strains are equipped with a multitude of antibiotic resistance mechanisms, rendering them resistant to most of the currently available antibiotics. Thus, there is a critical need to explore novel strategies for controlling antibiotic resistance in A. baumannii . This study investigated the efficacy of two food-grade, plant-derived antimicrobials (PDAs), namely trans -cinnamaldehyde (TC) and eugenol (EG) in decreasing A...
2018: Frontiers in Microbiology
Siavash Babajafari, Abdollah Hojhabrimanesh, Zahra Sohrabi, Mehdi Ayaz, Ali Noorafshan, Atefeh Akrami
BACKGROUND: There is controversy regarding whether increasing isolated soy protein (ISP) with or without flaxseed oil (FO), as functional foods, would lead to reduce muscle catabolism and cachexia in burn patients. METHODS: One hundred and eighty-eight patients were assessed for eligibility in this randomized controlled trial. Of these, seventy-three eligible patients (total burn surface area 20-50%) were randomly assigned to three groups, labeled as Control (wheat flour [WF] + corn oil [CO]), ISP + FO, and ISP + CO, to receive these nutrients for three weeks...
June 4, 2018: Trials
Deepali Verma, Neha Gulati, Shreya Kaul, Siddhartha Mukherjee, Upendra Nagaich
The key role of protein based nanostructures has recently revolutionized the nanomedicine era. Protein nanoparticles have turned out to be the major grounds for the transformation of different properties of many conventional materials by virtue of their size and greater surface area which instigates them to be more reactive to some other molecules. Protein nanoparticles have better biocompatibilities and biodegradability and also have the possibilities for surface modifications. These nanostructures can be synthesized by using protein like albumin, gelatin, whey protein, gliadin, legumin, elastin, zein, soy protein, and milk protein...
2018: Journal of Pharmaceutics
Tokiko Shinjo, Keishoku Sakuraba, Atsuko Nakaniida, Tomoyo Ishibashi, Miki Kobayashi, Yuya Aono, Yoshio Suzuki
Lactoferrin is a secretory protein with various physiological functions. Bovine lactoferrin has been demonstrated to alleviate psychological stresses in rats, but this effect in humans has not yet been assessed. The present study aimed to investigate the changes in psychological stress markers following a calculation task, with either lactoferrin or a placebo orally administered prior to the task. A total of 16 healthy female college students visited Juntendo University, Inzai, Japan following an overnight fast...
May 2018: Biomedical Reports
Ahmed A A Taha, Masafumi Koshiyama, Noriomi Matsumura, Kaoru Abiko, Ken Yamaguchi, Jyunzo Hamanishi, Tsukasa Baba, Budiman Kharma, Ibrahim Hassanin Mohamed, Magdy Mohamed Ameen, Salah Ali Ismail, Ikuo Konishi, Masaki Mandai
We evaluated whether different dietary protein qualities (isocaloric diets involving animal (casein) or plant protein (soy protein) could inhibit the ovarian cancer growth in mice and improve their prognosis and whether chemotherapy had different tumor reducing effects on these mice. In the mice of the 20% plant protein group, the ovarian cancer growth at 5 weeks after tumor implantation was clearly reduced in comparison to the mice in the 20% animal protein group (p< 0.001). The serum levels of insulin and IGF-1 levels were both lower in the mice of the 20% plant protein group than in the mice of the 20% animal protein group (p<0...
May 8, 2018: Oncotarget
Ronnie de Jonge, Malaika K Ebert, Callie R Huitt-Roehl, Paramita Pal, Jeffrey C Suttle, Rebecca E Spanner, Jonathan D Neubauer, Wayne M Jurick, Karina A Stott, Gary A Secor, Bart P H J Thomma, Yves Van de Peer, Craig A Townsend, Melvin D Bolton
Species in the genus Cercospora cause economically devastating diseases in sugar beet, maize, rice, soy bean, and other major food crops. Here, we sequenced the genome of the sugar beet pathogen Cercospora beticola and found it encodes 63 putative secondary metabolite gene clusters, including the cercosporin toxin biosynthesis ( CTB ) cluster. We show that the CTB gene cluster has experienced multiple duplications and horizontal transfers across a spectrum of plant pathogenic fungi, including the wide-host range Colletotrichum genus as well as the rice pathogen Magnaporthe oryzae Although cercosporin biosynthesis has been thought to rely on an eight-gene CTB cluster, our phylogenomic analysis revealed gene collinearity adjacent to the established cluster in all CTB cluster-harboring species...
May 29, 2018: Proceedings of the National Academy of Sciences of the United States of America
Ludmila A Zabodalova, Maria S Belozerova, Tatiana N Evstigneeva
BACKGROUND: In recent years, the number of elderly people has increased, and the diseases that arise in old age are associated, amongst other factors, with malnutrition. In the elderly, the need for primary nutrients and energy changes, so the development of food products intended for this particular group of people is becom- ing increasingly important. The purpose of this research is to work out the composition of and technology for producing low-fat curd products from raw milk and vegetable components...
April 2018: Acta Scientiarum Polonorum. Technologia Alimentaria
Yuyang Zhu, Maomao Yan, Yi Lasanajak, David F Smith, Xuezheng Song
Despite the important advances in chemical and chemoenzymatic synthesis of glycans, access to large quantities of complex natural glycans remains a major impediment to progress in Glycoscience. Here we report a large-scale preparation of N-glycans from a kilogram of commercial soy proteins using oxidative release of natural glycans (ORNG). The high mannose and paucimannose N-glycans were labeled with a fluorescent tag and purified by size exclusion and multidimensional preparative HPLC. Side products are identified and potential mechanisms for the oxidative release of natural N-glycans from glycoproteins are proposed...
May 15, 2018: Carbohydrate Research
I A Dubrovina, I V Kiseleva, E V Kireeva, L G Rudenko
For stabilization of vaccine preparations, they are lyophilized. The composition of the protective medium is an important parameter affecting the quality of the vaccine after drying. In view of the risk of spreading prion diseases, the use of media containing animal proteins is not recommended. In this study, protective media containing no animal proteins and lyophilization regimen were determined. The optimum lyophilization regimen consisted of three stages: freezing at -70°C, main stage at -35°C, and drying at 24°C...
May 24, 2018: Bulletin of Experimental Biology and Medicine
Tingting Wang, Xuan Wang, Huihui Zhou, Haowen Jiang, Kangsen Mai, Gen He
Searching for nutraceuticals and understanding the underlying mechanism that promote fish growth is at high demand for aquaculture industry. In this study, the modulatory effects of soy phosphatidic acids (PA) on cell proliferation, nutrient sensing, and metabolic pathways were systematically examined in primary muscle cells of turbot ( Scophthalmus maximus ). PA was found to stimulate cell proliferation and promote G1/S phase transition through activation of target of rapamycin signaling pathway. The expression of myogenic regulatory factors, including myoD and follistatin , was upregulated, while that of myogenin and myostatin was downregulated by PA...
2018: Frontiers in Endocrinology
Sandra M Duitama, Javier Zurita, Diana Cordoba, Paola Duran, Leopold Ilag, Wilson Mejia
AIM: To evaluate the intake of a soy protein-based supplement (SPS) and its effects on the sexual maturation and nutritional status of prepubertal children who consumed it for a year. METHODS: Healthy children (n = 51) were recruited and randomly assigned to consume the lunch fruit juice with (n = 29) or without (n = 22) addition of 45 g of a commercial soy protein-based supplement (SPS) over 12 months. Nutritional assessment including anthropometry (bodyweight, height, triceps skinfold thickness, mid-upper arm circumference), body mass index (BMI), upper arm muscle area, arm muscle circumference, upper arm area, upper arm fat area data were derived from measures using usual procedures; age and gender-specific percentiles were used as reference...
May 20, 2018: Journal of Paediatrics and Child Health
Biao Suo, Hua Yang, Yuexia Wang, Haipeng Lv, Zhen Li, Chao Xu, Zhilu Ai
When frozen, Staphylococcus aureus survives in a sublethally injured state. However, S. aureus can recover at a suitable temperature, which poses a threat to food safety. To elucidate the resuscitation mechanism of freezing survived S. aureus , we used cells stored at -18°C for 90 days as controls. After resuscitating the survived cells at 37°C, the viable cell numbers were determined on tryptic soy agar with 0.6% yeast extract (TSAYE), and the non-injured-cell numbers were determined on TSAYE supplemented with 10% NaCl...
2018: Frontiers in Microbiology
Ruisong Pei, Diana M DiMarco, Kelley K Putt, Derek A Martin, Chureeporn Chitchumroonchokchai, Richard S Bruno, Bradley W Bolling
Background: Metabolic endotoxemia is associated with obesity and contributes to postprandial inflammation. Objective: We aimed to determine if low-fat yogurt consumption prevents postprandial inflammation and dysmetabolism in healthy women by inhibiting biomarkers of metabolic endotoxemia. Methods: Premenopausal women defined as obese and nonobese [body mass index (BMI, in kg/m2) 30-40 and 18.5-27, respectively, n = 120] were randomly assigned to consume 339 g of low-fat yogurt (YN, yogurt nonobese; YO, yogurt obese) or 324 g of soy pudding (CN, control nonobese; CO, control obese) for 9 wk (n = 30/group)...
May 15, 2018: Journal of Nutrition
Martin Jj Ronis, Horacio Gomez-Acevedo, Kartik Shankar, Neha Sharma, Michael Blackburn, Rohit Singhal, Kelly E Mercer, Thomas M Badger
The isoflavone phytoestrogens found in the soy protein isolate used in soy infant formulas have been shown to have estrogenic actions in the developing male reproductive tract resulting in reproductive toxicity. However, few studies have examined potential estrogenicity of soy protein isolate as opposed to that of pure isoflavones. In this study, we fed weanling male Sprague-Dawley rats a semi-purified diet with casein or soy protein isolate as the sole protein source from postnatal day 21 to 33. Additional groups were fed casein or soy protein isolate and treated s...
May 2018: Experimental Biology and Medicine
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