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Journal of the Science of Food and Agriculture

Sara Corral, Carmela Belloch, José J López-Díez, Mónica Flores
BACKGROUND: The use of boar back fat for processing of fermented sausages may cause the presence of abnormal odours. In dry-cured products, ripening time is essential to develop the sensory characteristics. Yeast has been proposed as an alternative to mask boar taint odour through its metabolic activity but it is necessary to elucidate which mechanisms are involved. The aim is to study the effect of D. hansenii inoculation on the lipolysis process and generation of aroma compounds in fermented sausages manufactured with boar back fat at two different ripening times...
September 23, 2017: Journal of the Science of Food and Agriculture
Roshanak Rafiei Nazari, Simin Noorian, Majid Arabameri
BACKGROUND: There are limitations to the basic knowledge regarding various ways by which packaging components migrate into food as well as ways by which various conditions, elements and molecules related to this phenomenon are analyzed. This research aimed to model phthalate migration from polyethylene terephthalate bottles containing non-alcoholic beer by performing ANFIS analysis. RESULTS: The data showed that storage temperature, contact surface and storage period correlates with the rate of migration...
September 23, 2017: Journal of the Science of Food and Agriculture
Wang Cong, Liu Qiang, Li He Qiong, Wu Xiao Xu, Gang Guo, Wen Jie Huo, Pei Cai Xia, Zhang Yan Li, Zhang Shuan Lin
BACKGROUND: Lactation performance of dairy cow has considerably increased with animal breeding and management improvement in recent years. Ruminal net synthesized pantothenic acid is insufficient to meet the requirement of high producing dairy cows. The objective was to investigate the effects of rumen-protected pantothenate (RPP) on lactation performance, ruminal fermentation, nutrient digestion and blood metabolites in dairy cows. RESULTS: Dry matter (DM) intake tended to increase, whereas milk yields, milk fat percentage and yield, body condition score (BCS) changes and net energy output except for maintance increased linearly with increasing RPP supplementation...
September 23, 2017: Journal of the Science of Food and Agriculture
Chengzijing He, Sovichea Lay, Haining Yu, Shengrong Shen
BACKGROUND: Binary functional monomers, allyl-β-cyclodextrin (allyl-β-CD) and methacrylic acid (MAA) or allyl-β-CD and acrylonitrile (AN), were exploited in a fabrication of molecularly imprinted polymers (MIPs) for selective recognition and large enrichment of pirimicarb from aqueous media. RESULTS: Special attention was paid to the computational simulation of the inprinting molecular and functional monomers. The morphological characteristics of MIPs made of allyl-β-CD and MAA (M-MAA) were characterized by a scanning electron micrograph (SEM)...
September 23, 2017: Journal of the Science of Food and Agriculture
Panan Suntornsaratoon, Narattaphol Charoenphandhu, Nateetip Krishnamra
BACKGROUND: Breastfeeding leads to bone calcium loss for milk production, resulting in progressive maternal osteopenia. Calcium supplement from natural sources has been postulated to be more beneficial to bone health than purified CaCO3 because natural sources also contain other nutrients such as certain amino acids that might enhance calcium metabolism. Herein, we examined the effect of calcium supplementation from tuna bone powder and CaCO3 on bones of dams and the offspring. RESULTS: Both forms of calcium supplement, i...
September 22, 2017: Journal of the Science of Food and Agriculture
Mahdi Safaei Khorram, Akram Fatemi, Md Asaduzzaman Khan, Rudolf Kiefer, Sasan Jafarnia
BACKGROUND: Biochar amendment as a promising tool to improve the soil quality and consequently, higher crop yield has received more attention during last decades. The positive effects of biochar have been getting more attention especially in the areas with low precipitation rate like Middle East, due to low soil organic carbon content, higher drought intensity, and increasing demands for food production. However, biochar can lead to lower herbicide efficacy, resulting in higher consumption of herbicides...
September 22, 2017: Journal of the Science of Food and Agriculture
Yasuo Nagata, Narumi Mizuta, Akane Kanasaki, Kazunari Tanaka
BACKGROUND: Rare sugars including D-allulose, D-tagatose, and D-sorbose are present in limited quantities in nature; some of these rare sugars are now commercially produced using microbial enzymes. Apart from the anti-obesity and anti-hyperglycemic activities of D-allulose, effects of these sugars on lipid metabolism have not been investigated. Therefore, we aimed to determine if and how D-tagatose and D-sorbose modulate lipid metabolism in rats. After feeding these rare sugars to rats, parameters on lipid metabolism were determined...
September 21, 2017: Journal of the Science of Food and Agriculture
Cassandra D'souza, Rosaline Fernandes, Subhash Kudale, Azza Silotry Naik
BACKGROUND: Acidity regulators are additives that alter and control food acidity. The objective of this study was to explore local indigenous fruits as source of natural acidity regulators. Juices extracted from Garcinia indica (kokum), Embilica officinalis (amla) and Tamarindus indica (tamarind) were used as acidulants for medium such as coconut milk and bottle gourd juice. The buffering capacity (β), acid composition, antioxidant activity and shelf-life study of the acidified media were estimated...
September 20, 2017: Journal of the Science of Food and Agriculture
Nurulhuda Khairudin, Donald S Gaydon, Qi Jing, Mohamad P Zakaria, Paul C Struik, Karel J Keesman
Extensive modelling studies on nitrogen (N) dynamics in flooded soil systems have been published. Consequently, many N dynamics models are available for users to select from. With the current research trend, inclined towards multi-disciplinary research, and with substantial progress in understanding of N dynamics in flooded soil systems, the objective of this paper is to provide an overview of the modelling concepts and performance of 14 models developed to simulate N dynamics in flooded soil systems. This overview provides breadth of knowledge on the models, and, therefore, is valuable as a first step in the selection of an appropriate model for a specific application...
September 20, 2017: Journal of the Science of Food and Agriculture
Sudhanshu Saxena, Sanjeev Kumar, Jyoti Tripathi, Satyendra Gautam
BACKGROUND: Confound apprehension towards safety of irradiated food has remained a major cause behind tardy acceptance of this technology though it has immense socio-economic potential. Generation of in depth scientific evidences will help to refute these apprehensions. With this prospective, present study was undertaken where safety of various irradiated (Dmin up to 25 kGy) foods was evaluated through long term exposure studies in models including human lymphoblast TK6 cell line (100 generations) and Escherichia coli MG1655 cells (exclusive subcuturing in irradiated food medium for 3000 generations)...
September 20, 2017: Journal of the Science of Food and Agriculture
Sandi Darniadi, Peter Ho, Brent S Murray
BACKGROUND: Blueberry juice powder was developed via foam-mat freeze-drying (FMFD) and spray-drying (SD) via addition of maltodextrin (MD) and whey protein isolate (WPI) at weight ratios of MD/WPI 0.4 to 3.2 (with a fixed solids content of 5 wt.% for FMFD and 10 wt.% for SD). Feed rates of 180 and 360 mL h(-1) were tested in SD. The objective was to evaluate the effect of the drying methods and carrier agents on the physical properties of the corresponding blueberry powders and reconstituted products...
September 20, 2017: Journal of the Science of Food and Agriculture
Bin Zhou, Yueliang Zhao, Xichang Wang, Kawing Cheng, Mingfu Wang
BACKGROUND: Heterocyclic aromatic amines (HAAs) are mutagens and rodent carcinogens. Flavonoids have attracted considerable attention for development into effective inhibitors against the formation of genotoxic heterocyclic aromatic amines (HAAs) in thermally processed foods. RESULTS: The inhibitory effect of dihydromyricetin (DMY) on the formation of key HAAs, including 2-amino-1-methyl-6- phenylimidazo[4,5-b]pyridine (PhIP), 2-amino-3,8-dimethylimidazo[4,5-f]-quinoxaline (MeIQx), and 2-amino-3,4,8-trimethylimidazo[4,5-f]quinoxaline (4,8-DiMeIQx) was significant...
September 20, 2017: Journal of the Science of Food and Agriculture
Ting Zhou, Pei Wang, Runqiang Yang, Xinyue Wang, Zhenxin Gu
BACKGROUND: Phytic acid is considered as an antinutrient. Ca(2+) addition during germination has been proved to be an effective method for reducing phytic acid content in seeds. In this study, mung bean sprouts were treated with LaCl3 (La), verapamil (VP), ruthenium red (RR) and CaCl2 to explore the effect of Ca(2+) influxes on phytic acid degradation. RESULTS: 6 mM CaCl2 significantly improved extracellular and intracellular calcium precipitates and calcium content, elevated phytase and acid phosphatase activity and further enhanced phytic acid degradation...
September 19, 2017: Journal of the Science of Food and Agriculture
Huali Hu, Dan Liu, Pengxia Li
BACKGROUND: During the postharvest senescence of fruits and vegetables, redox imbalance occurs. Although the release of methane (CH4 ) has been observed for a long time and its antioxidant properties have recently been demonstrated in animals and plants, the corresponding physiological role of CH4 in regulating plant senescence has not yet been elucidated. RESULTS: Here, our results indicate that the postharvest deterioration of daylily buds during storage is greatly ameliorated by the exogenous application of CH4 , particularly in the inhibition of tissue browning...
September 19, 2017: Journal of the Science of Food and Agriculture
Sarah A Lynch, Carlos Alvarez, Eileen O'Neill, Derek F Keenan, Anne Maria Mullen
BACKGROUND: Response surface methodology (RSM) was used in a sequential manner to optimize solubilization and precipitation conditions in the recovery of protein from bovine lung using pH shift. RESULT: Separate D-optimal designs were employed for protein solubilization and precipitation. Independent variables investigated for protein solubilization were time (10-120 minutes), temperature (4-20 °C), pH (8-11) and solvent sample ratio (2.5-10). Variables for protein precipitation were time (0-60 minutes) and pH (4...
September 15, 2017: Journal of the Science of Food and Agriculture
Valentina Giovenzana, Roberto Beghi, Simone Parisi, Lucio Brancadoro, Riccardo Guidetti
BACKGROUND: Increasing attention is paid to non-destructive methods for water status real time monitoring as a potential solution, replacing the tedious conventional techniques which are time consuming and not easily to perform directly in field. The objective was to test the potential effectiveness of two portable optical devices (visible/near infrared, vis/NIR; and near infrared, NIR) for a rapid and non-destructive evaluation of the water status of grapevine leaves. Moreover, a variable selection methodology was proposed to determine a set of candidate variables for the prediction of water potential (Ψ; MPa) related to leaf water status in a view of a simplified optical device...
September 15, 2017: Journal of the Science of Food and Agriculture
Yasutaka Shigemura, Asahi Suzuki, Mihoko Kurokawa, Yosio Sato, Kenji Sato
BACKGROUND: daily ingestion of collagen hydrolysate improves skin and joint conditions. It has been speculated that the beneficial effects are exerted by food-derived hydroxyproline (Hyp) peptides, which are detected in human blood after single ingestions. In the present study, to investigate the detailed relationship of the beneficial effects of Hyp-peptides, we examined the concentrations of Hyp-peptides in human blood before and after daily ingestion. RESULTS: Hyp-peptides increased to a maximum level at 1 h after ingestion and reverted to their initial levels within 24 h during daily ingestion...
September 15, 2017: Journal of the Science of Food and Agriculture
Luca Brillante, Mirko De Rosso, Antonio Dalla Vedova, Itay Maoz, Riccardo Flamini, Diego Tomasi
BACKGROUND: Grape withering is a process used to produce reinforced wines and raisins. Dehydration is usually carried out post-harvest by keeping ripe grapes in special warehouses in controlled conditions of temperature, relative humidity (RH) and air-flow. Alternatively, grape clusters can be left on the vines after the canes have been pruned. In general, dehydration increases stilbenes in grape, but there are few studies on the effects of on-vine withering. The stilbene profiles of Raboso Piave grape during post-harvest and on-vine dehydration were studied here...
September 15, 2017: Journal of the Science of Food and Agriculture
Yingqun Nian, Paul Allen, Robert Prendiville, Joseph P Kerry
BACKGROUND: The aim was to assess the physico-chemical and sensory characteristics of Longissimus thoracis muscle from young dairy bulls; Holstein-Friesian (HF) and Jersey×Holstein-Friesian (JEX). Bulls slaughtered at 15-months old differed in finishing system, while 19-month old bulls differed in energy consumption during a second grazing season and finishing period. All bulls were offered different diet during the first grazing season. RESULTS: Insoluble and total collagen contents increased with slaughter age, while collagen solubility and hue angle reduced with age...
September 14, 2017: Journal of the Science of Food and Agriculture
Óscar Rodríguez, Valeria Eim, Carmen Rosselló, Antoni Femenia, Juan A Cárcel, Susana Simal
Drying allows the obtaining of products with a long shelf life by reducing the water activity to a level low enough for the growth of microorganisms, enzymatic reactions, and other deteriorative reactions to be inhibited. Despite the benefits of this operation, the quality of heat sensitive products is diminished when high temperatures are used. The use of low drying temperatures reduces the heat damage but being the drying time longer, oxidation reactions occur and a reduction of the quality is also observed...
September 14, 2017: Journal of the Science of Food and Agriculture
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