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functional food

Cuiping Yu, Yue Cha, Fan Wu, Xianbing Xu, Ming Du
In this study, the effects of limited hydrolysis and/or high-pressure homogenization (HPH) treatment in acid conditions on the functional properties of oyster protein isolates (OPI) were studied. Protein solubility, surface hydrophobicity, particle size distribution, zeta potential, foaming, and emulsifying properties were evaluated. The results showed that acid treatment led to the dissociation and unfolding of OPI. Subsequent treatment such as limited proteolysis, HPH, and their combination remarkably improved the functional properties of OPI...
March 22, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Camila Gómez, Thomas Larsen, Brian Popp, Keith A Hobson, Carlos Daniel Cadena
Tools to study seasonal changes in animal diets are needed to address a wide range of ecological questions. This is especially true of migratory animals that experience distinct environments where diets may be substantially different. However, tracking diets of individuals that move vast distances has proven difficult. Compound-specific isotope analysis has emerged as a valuable tool to study diets but has been little used to study dietary changes of migratory animals. Using this technique, we quantify seasonal variation in the annual diet of a migratory songbird (gray-cheeked thrush, Catharus minimus) and test the hypothesis that migrants change their diet in response to the energetic requirements of different periods of the annual cycle...
March 22, 2018: Oecologia
Erica Tirloni, Cristian Bernardi, Sandro Drago, Giuseppe Stampone, Francesco Pomilio, Patrizia Cattaneo, Simone Stella
Objective of the present study was to test the performances of a loop-mediated isothermal amplification (LAMP)-based method for the detection of Listeria monocytogenes , with particular focus on the dairy products. The specificity of the method was evaluated on 42 different Listeria spp. strains from collections, food and environmental samples. 100% (32 of 32) of the L. monocytogenes strains were correctly recognised, and none of other 10 Listeria spp. strains was misidentified. The sensitivity was evaluated on four L...
October 20, 2017: Italian Journal of Food Safety
Adele Repossi, Elisa Zironi, Teresa Gazzotti, Andrea Serraino, Giampiero Pagliuca
Vitamin B12 (cobalamin) is a metal complex composed of a central cobalt ion bonded to six ligands. It is essential for major biological functions such as protein, fat and carbohydrate metabolism, the maintenance of the central nervous system, and the formation of red blood cells. Since mammals cannot synthesize cobalamin, dietary intake represents the only natural source for humans. Dairy products can provide significant levels of cobalamin; moreover, the European Food Safety Authority (EFSA) panel has set the recommended intake at 4 μg/day for adults...
October 20, 2017: Italian Journal of Food Safety
Evelyn S Buckman, Ibok Oduro, Wisdom A Plahar, Charles Tortoe
Many plant species that are suitable for food across the world are neglected and underutilized. In order to increase their diversified food uses and thus help enhance food and nutrition security, we studied the chemical and functional properties of Pachyrhizus erosus (yam bean), which is a neglected and underutilized legume species. The chemical properties of flour produced from the yam bean include 5.8% moisture content, 5.7% crude fat, 6.2% crude fiber, and 85% available carbohydrate, indicating appropriate shelf-stable flour, low fat, and abundant energy...
March 2018: Food Science & Nutrition
B Irene Tieleman
This article provides a brief historical perspective on the integration of physiology into the concept of the pace of life of birds, evaluates the fit of immune function into this framework, and asks what it will take to fruitfully understand immune functioning of birds in pace of life studies in the future. In the late 1970s, physiology started to seriously enter avian life history ecology, with energy as the main currency of interest, inspired by David Lack's work in the preceding decades emphasizing how food availability explained life history variation...
2018: Behavioral Ecology and Sociobiology
Simon O Ichumar, Emma E Dahlberg, Ellen B Paynter, Fiona M C Lucey, Miranda R Chester, Lennelle Papertalk, Sandra C Thompson
OBJECTIVE: To assess the school breakfast program (SBP) in two schools with high Aboriginal student populations in rural Western Australia, their contribution to holistic support, nutritional health education and possibilities for improvement. METHODS: The operations and functioning of one regional and one remote SBP were assessed by stakeholder inquiry related to process and challenges, observations and documentary review. An intervention to increase health education, social interaction and learning about nutrition and food origins implemented in one school was assessed...
March 17, 2018: Nutrients
Daniela Caccamo, Sergio Ricca, Monica Currò, Riccardo Ientile
Hypovitaminosis D has become a pandemic, being observed in all ethnicities and age groups worldwide. Environmental factors, such as increased air pollution and reduced ultraviolet B (UVB) irradiation, as well as lifestyle factors, i.e., decreased outdoor activities and/or poor intake of vitamin D-rich food, are likely involved in the etiology of a dramatic reduction of vitamin D circulating levels. The insufficiency/deficiency of vitamin D has long been known for its association with osteoporosis and rickets...
March 17, 2018: International Journal of Molecular Sciences
Antonino Foti, Cristiano D'Andrea, Valentina Villari, Norberto Micali, Maria Grazia Donato, Barbara Fazio, Onofrio M Maragò, Raymond Gillibert, Marc Lamy de la Chapelle, Pietro G Gucciardi
Optical forces are used to aggregate plasmonic nanoparticles and create SERS-active hot spots in liquid. When biomolecules are added to the nanoparticles, high sensitivity SERS detection can be accomplished. Here, we pursue studies on Bovine Serum Albumin (BSA) detection, investigating the BSA-nanorod aggregations in a range from 100 µM to 50 nM by combining light scattering, plasmon resonance and SERS, and correlating the SERS signal with the concentration. Experimental data are fitted with a simple model describing the optical aggregation process...
March 17, 2018: Materials
Jeffrey Cummings, Aaron Ritter, Kate Zhong
Alzheimer's disease (AD) has no currently approved disease-modifying therapies (DMTs), and treatments to prevent, delay the onset, or slow the progression are urgently needed. A delay of 5 years if available by 2025 would decrease the total number of patients with AD by 50% in 2050. To meet the definition of DMT, an agent must produce an enduring change in the course of AD; clinical trials of DMTs have the goal of demonstrating this effect. AD drug discovery entails target identification followed by high throughput screening and lead optimization of drug-like compounds...
March 16, 2018: Journal of Alzheimer's Disease: JAD
Kathy Steppe, Maurits W Vandegehuchte, Bart A E Van de Wal, Pieter Hoste, Adrien Guyot, Catherine E Lovelock, David A Lockington
Mangrove forests depend on a dense structure of sufficiently large trees to fulfil their essential functions as providers of food and wood for animals and people, CO2 sinks and protection from storms. Growth of these forests is known to be dependent on the salinity of soil water, but the influence of foliar uptake of rainwater as a freshwater source, additional to soil water, has hardly been investigated. Under field conditions in Australia, stem diameter variation, sap flow and stem water potential of the grey mangrove (Avicennia marina (Forssk...
March 17, 2018: Tree Physiology
Folachodé U G Akogou, Heidy M W den Besten, A P Polycarpe Kayodé, Vincenzo Fogliano, Anita R Linnemann
Sorghum (Sorghum bicolor) extract is traditionally used as red biocolorant in West Africa to colour foods, among which wagashi, a soft cheese. This biocolorant is a source of the phytoalexin apigeninidin and phenolic acids, and users claim that it has preservative effects next to its colouring properties. If such a claim can be scientifically substantiated, it adds a valuable functional property to this natural red colorant, thereby increasing its potential applications in the food industry. Hence, the present study evaluated the antimicrobial properties of dye sorghum extracts using challenge tests in broth and wagashi as a model of a popular food application...
2018: PloS One
María Figueiredo-González, Patricia Reboredo-Rodríguez, Carmen González-Barreiro, Alegría Carrasco-Pancorbo, Jesús Simal-Gándara, Beatriz Cancho-Grande
The increasing interest in the Mediterranean diet is based on the protective effects against several diseases, including neurodegenerative disorders. Polyphenol-rich functional foods have been proposed to be unique supplementary and nutraceutical treatments for these disorders. Extra-virgin olive oils (EVOOs) obtained from 'Brava' and 'Mansa', varieties recently identified from Galicia (northwestern Spain), were selected for in vitro screening to evaluate their capacity to inhibit key enzymes involved in Alzheimer's disease (AD) (acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) and 5-lipoxygenase (5-LOX)), major depressive disorder (MDD) and Parkinson's disease (PD) (monoamine oxidases: h MAO-A and h MAO-B respectively)...
March 21, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Y Q Liu, P Strappe, Z K Zhou, C Blanchard
Rice bran, a valuable byproduct of the rice milling process, has limitations in food industrial applications due to its instability during storage. This review summaries the methodology for stabilization and its impact on the nutritional properties of rice bran. A variety of treatments have been used and these include heat treatment, low-temperature storage, biological and chemical approaches and these will be discussed in terms of their ability to destroy/inhibit enzyme activity and improve storage performance of rice bran...
March 21, 2018: Critical Reviews in Food Science and Nutrition
Mohamed A Farag, Amira R Khattab, Anja Ehrlich, Matthias Kropf, Andreas G Heiss, Ludger A Wessjohann
Lens culinaris and several Lupinus species are two legumes regarded as potential protein resources aside from their richness in phytochemicals. Characterization of their metabolite composition is warranted as a sustainable functional food. This study presents a discriminatory-holistic approach for metabolites profiling in accessions of four lentil cultivars and four lupinus species via gas chromatography-mass spectrometry. A total of 107 metabolites were identified encompassing organic and amino acids, sugars and sterols along with anti-nutrients viz...
March 21, 2018: Journal of Agricultural and Food Chemistry
Géraldine Coppin, David Sander, Alain Golay, Zoltan Pataky
Besides hormonal regulation of appetite and satiety, food intake depends on the activity of certain brain systems. Functional imaging studies are useful to better understand this central regulation of energy intake. Obesity is associated with increased brain responses to food stimuli at the level of the reward system. More specifically, studies have shown in obese individuals an increased motivation to obtain food reward as well as a decrease in pleasure during its actual consumption. Food consumption may be, in some instances, comparable to addiction, and be reflected by irresistible cravings for certain foods...
March 21, 2018: Revue Médicale Suisse
Autumn N Harris, Hyun-Wook Lee, Gunars Osis, Lijuan Fang, Kierstin L Webster, Jill W Verlander, I David Weiner
Renal ammonia metabolism has a major role in the maintenance of acid-base homeostasis. Sex differences are well recognized as an important biological variable in many aspects of renal function, including fluid and electrolyte metabolism. However, sex differences in renal ammonia metabolism have not been previously reported. Therefore, the purpose of the current study was to investigate sex differences in renal ammonia metabolism. We studied 4-month-old wild type C57BL/6 mice fed a normal diet. Despite similar levels of food intake, and thus protein intake, which is the primary determinant of endogenous acid production, female mice excreted greater amounts of ammonia, but not titratable acids, than did male mice...
March 21, 2018: American Journal of Physiology. Renal Physiology
Alejandra Ramírez-Martínez, Estela Camarillo-Hernández, Magda Carvajal-Moreno, Manuel Vargas-Ortíz, Nathalie Wesolek, Guadalupe Del Carmen Rodriguez Jimenes, Miguel Ángel Garcia Alvarado, Alain-Claude Roudot, Marco Antonio Salgado Cervantes, Victor J Robles-Olvera
The present study evaluated the exposure of Southeast Mexican population to Aflatoxin M1 (AFM1) and M2 (AFM2) through the consumption of Oaxaca cheese. The intake of Oaxaca cheese was assessed via a food 7-day dairy questionnaire (N = 1100, 2014 and 2015). Thirty Oaxaca cheeses were randomly sampled, and the origin of the samples was also investigated. AFM1 and AFM2 were quantified by HPLC-FD. The exposure was assessed through the combination of the Probabilistic Density Functions (probabilistic approach)...
March 21, 2018: International Journal of Environmental Health Research
Han Wu, Xin Rui, Wei Li, Yu Xiao, Jianzhong Zhou, Mingsheng Dong
This study explored a novel strategy to develop solid-state whole-grain oats as a novel carrier of lactic acid bacteria and a nutraceutical supplement rich in ACE inhibitory peptides. Oats were fermented by Lactobacillus plantarum B1-6, Rhizopus oryzae, or a combination of L. plantarum B1-6 and R. oryzae. L. plantarum showed a much better growth performance in oats when it was combined with R. oryzae than when it was cultured alone, as evidenced by an increase in viable cell count to 9.70 log cfu g-1 after 72 h of fermentation...
March 21, 2018: Food & Function
Qiannan Peng, Shuaiming Jiang, Jieling Chen, Chenchen Ma, Dongxue Huo, Yuyu Shao, Jiachao Zhang
Fermented vegetables are typically traditional foods made of fresh vegetables and their juices, which are fermented by beneficial microorganisms. Herein, we applied high-throughput sequencing and culture-dependent technology to describe the diversities of microbiota and identify core microbiota in fermented vegetables from different areas of Hainan Province, and abundant metabolic pathways in the fermented vegetables were simultaneously predicted. At the genus level, Lactobacillus bacteria were the most abundant...
2018: Frontiers in Microbiology
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