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Journal of Food Science

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https://www.readbyqxmd.com/read/30020550/interaction-between-phenolic-compounds-and-lipase-the-influence-of-solubility-and-presence-of-particles-in-the-ic-50-value
#1
Atma-Sol Bustos, Andreas Håkansson, Javier A Linares-Pastén, Jose M Penarrieta, Lars Nilsson
Obesity is one of the principal human health problems and one of the main treatments against it is the inhibition of pancreatic lipase, the main responsible enzyme of lipid digestion. For that purpose, previous studies have tested several phenolic compounds against lipase, without considering their aggregation behavior in aqueous solutions. Because of this, the present study focuses on understanding how the solubility and the presence of particles affect the IC50 value of the interaction between lipase and phenolic compounds present in beverages like fruit juices and teas...
July 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30020548/economically-motivated-food-fraud-and-adulteration-in-brazil-incidents-and-alternatives-to-minimize-occurrence
#2
REVIEW
Casiane Salete Tibola, Simone Alves da Silva, Alvaro Augusto Dossa, Diego Inácio Patrício
Brazil is one of the world's largest food producers. Adulteration of foods is often reported and represent an important potential threat to food safety. Because of this, reduction of the vulnerability of foods to adulteration is of high priority to Brazil. This study analyzes economically motivated food fraud and adulterations in Brazil between 2007 and 2017, based on academic journal reports. In addition, alternatives are proposed to minimize these incidents through good practices, traceability systems and the development of methods to detect food fraud and adulteration...
July 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30020543/bromelain-kinetics-and-mechanism-on-myofibril-from-golden-pomfret-trachinotus-blochii
#3
Xiao Feng, Shasha Hang, Yige Zhou, Qin Liu, Hongshun Yang
Bromelain was used to tenderize golden pomfrets (Trachinotus blochii). The enzyme kinetic model was x=2.447×ln[1+(1332.21×E0S0-1.74)t], which indicated that the degree of hydrolysis (DH, x) was dependent on hydrolysis time (t), the initial concentration of myofibril (S0 ) and bromelain (E0 ). The relationship between the overall hydrolysis rate (v), S0 , E0 , and t is demonstrated as: v=(16.50(E0S0)-1.33)S0 exp {-2.447ln[1+(1332.21E0S0-1.74)t2]}. Sample of 0.40% E0 /S0 was further used to study the effects of hydrolysis time on the changes of proteins, peptides, free amino acids (FAA), and protein nanostructure...
July 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30020540/the-associations-between-oral-complex-carbohydrate-sensitivity-bmi-liking-and-consumption-of-complex-carbohydrate-based-foods
#4
Julia Y Q Low, Kathleen E Lacy, Robert L McBride, Russell S J Keast
Recent work suggests that humans may perceive complex carbohydrates and that their sensitivity to simple carbohydrates (i.e., glucose and sucrose) is independent from tasting complex carbohydrates. The aim of this study was to confirm whether humans could sense complex carbohydrates from a range of concentration levels; and if their oral sensitivity to complex carbohydrate relates to their BMI, liking, and consumption of complex carbohydrate-based foods using a large sample group of adults. Participants' (n = 92 females, age 23...
July 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30020533/oral-administration-of-probiotic-lactobacillus-casei-shirota-decreases-pneumonia-and-increases-pulmonary-functions-after-single-rib-fracture-a-randomized-double-blind-placebo-controlled-clinical-trial
#5
Chunhua Guo, Min Lei, Yong Wang, Limei Hua, Sujuan Xue, Dan Yu, Chunhua Zhang, Dawei Wang
Considerate proportion of elderly patients with a rib fracture is susceptible to pulmonary complications, especially pneumonia. We aimed to assess the effect of oral administration of the probiotic Lactobacillus casei Shirota (LcS) on pneumonia and pulmonary functions among elderly patients with single rib fracture. The current study including 204 eligible elderly patients with a single rib fracture was conducted. Patients were randomly assigned to receive oral administration of skimmed milk containing either a commercial probiotic LcS or placebo daily for 1 mo after the fracture, followed by pneumonia assessments, pulmonary function testing including forced expiratory volume (FEV), negative inspiratory pressure (NIP), and forced vital capacity (FVC), as well as evaluation of potential adverse effects including myocardial infarction, acute kidney injury, nonunion of fractured bone, or stroke...
July 18, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30007045/covalent-whey-protein-rosmarinic-acid-interactions-a-comparison-of-alkaline-and-enzymatic-modifications-on-physicochemical-antioxidative-and-antibacterial-properties
#6
Mostafa Ali, Julia K Keppler, Tom Coenye, Karin Schwarz
The covalent interactions between whey protein isolate (WPI) and rosmarinic acid (RosA) at two different conditions, alkaline (pH 9) and enzymatic (in the presence of tyrosinase, PPO), at room temperature with free atmospheric air were studied. The conjugates formed between WPI and RosA were characterized in terms of their physicochemical and functional properties. The changes in protein structure were analyzed by intrinsic fluorescence and binding of 8-anilino-1-naphthalenesulfonic acid. The findings show that the covalent interactions caused a decrease in free amino and thiol groups and tryptophan content at both conditions...
July 14, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30007040/analytical-method-for-pesticides-in-avocado-and-papaya-by-means-of-ultra-high-performance-liquid-chromatography-coupled-to-a-triple-quadrupole-mass-detector-validation-and-uncertainty-assessment
#7
Norma S Pano-Farias, Silvia G Ceballos-Magaña, Jose M Jurado, Ismael A Aguayo-Villarreal, Roberto Muñiz-Valencia
In this work, the uncertainty estimation for the determination of ametryn, carbofuran, atrazine, carbaryl, and methyl parathion in papaya and avocado is presented, along with other validation parameters. The analytical method was developed using Quick, Easy, Cheap, Effective, Rugged, and Safe extraction and ultrahigh performance liquid chromatography coupled to a triple quadrupole mass detector. The method validation showed that the linear correlation coefficients were higher than 0.99 for both fruits. The limits of detection for avocado and papaya were in the range of 0...
July 14, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/30004125/coconut-milk-and-coconut-oil-their-manufacture-associated-with-protein-functionality
#8
REVIEW
Umesh Patil, Soottawat Benjakul
Coconut palm (Cocos nucifera L.) is an economic plant cultivated in tropical countries, mainly in the Asian region. Coconut fruit generally consists of 51.7% kernel, 9.8% water, and 38.5% shell. Coconut milk is commonly manufactured from grated coconut meat (kernel). Basically, coconut milk is an oil-in-water emulsion, stabilized by some proteins existing in the aqueous phase. Maximization of protein functionality as an emulsifier can enhance the coconut milk stability. In addition, some stabilizers have been added to ensure the coconut milk stability...
July 13, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29979465/improving-the-antimicrobial-power-of-low-effective-antimicrobial-molecules-through-nanotechnology
#9
María Ruiz-Rico, Édgar Pérez-Esteve, Cristina de la Torre, Ana I Jiménez-Belenguer, Amparo Quiles, María D Marcos, Ramón Martínez-Máñez, José M Barat
The objective of this work was on the one hand to assess the antibacterial activity of amines anchored to the external surface of mesoporous silica particles against Listeria monocytogenes in comparison with the same dose of free amines as well. It was also our aim to elucidate the mechanism of action of the new antimicrobial device. The suitability of silica nanoparticles to anchor, concentrate and improve the antimicrobial power of polyamines against L. monocytogenes has been demonstrated in a saline solution and in a food matrix...
July 6, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29969524/antidiabetic-effect-of-high-chromium-yeast-against-type-2-diabetic-kk-ay-mice
#10
Lu Liu, Shu-Wen Zhang, Jing Lu, Xiao-Yang Pang, Jia-Ping Lv
High chromium yeast has attracted many researchers for its high efficiency and high safety among chromium supplements. The preventive effect of oral high-chromium yeast on diabetes was assessed using KK-AY mice. Sixteen-wk-old type 2 diabetic KK-AY mice were divided into five groups and orally administered with two types of drying processed high-chromium yeast, chromium picolinate at 1000 μg Cr/kg/d, metformin (positive control), and normal yeast (negative control) for 13 weeks. The spray-dried high-chromium yeast significantly delayed the onset of hyperglycemia in type 2 diabetic KK-AY mice (P < 0...
July 3, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29969512/uptake-and-transport-mechanism-of-dihydromyricetin-across-human-intestinal-caco-2-cells
#11
Dong Xiang, Li Fan, Xiao-Long Hou, Wei Xiong, Chun-Yang Shi, Wen-Qing Wang, Jian-Guo Fang
A variety of beneficial pharmacological activities have been reported for dihydromyricetin (DMY), however, its oral bioavailability is poor and the intestinal absorption profiles of DMY remains unknown. The aim of this study was to investigate the uptake and transport mechanism of DMY in human intestinal Caco-2 cells. DMY was detected using a liquid chromatography-tandem mass spectrometry method. Several factors including time, concentration, pH, temperature and efflux transporters were systematically evaluated...
July 3, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29969510/effects-of-in-vitro-human-digestion-on-the-antioxidant-activity-and-stability-of-lycopene-and-phenolic-compounds-in-pork-patties-containing-dried-tomato-prepared-at-different-temperatures
#12
Hyeong Sang Kim, Sun Jin Hur
The antioxidant activity can be changed during digestion. The effects of in vitro human digestion on the antioxidant activity and stability of tomato powders (TPs), dried at three different temperatures (60, 80, and 100 °C) and added to pork patties (1% TP by weight), were investigated. The pork patties with three TPs underwent in vitro human digestion with enterobacteria. Lycopene and individual phenolic compounds were analyzed by using HPLC. The highest total phenolic compounds (6.96 g/100 g) and lycopene concentrations (2...
July 3, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29969509/effect-of-xanthan-gum-soybean-fiber-ratio-in-the-batter-on-oil-absorption-and-quality-attributes-of-fried-breaded-fish-nuggets
#13
Jinhui Shan, Jiwang Chen, Dan Xie, Wenshui Xia, Wei Xu, Youling L Xiong
Xanthan gum (XG) and soybean fiber (SF) at varying ratios were incorporated into the batter to inhibit oil absorption in fried battered and breaded fish nuggets (BBFNs). BBFNs were prepared with 1.2% XG and SF blends (at ratios 1:3, 1:2, 1:1, 2:1, and 3:1 w/w), fried at 170 °C (40 s) followed by 190 °C (30 s), then evaluated for pickup, oil absorption, textural characteristics, and other quality attributes. Compared with the control (without the addition of XG and SF), fried BBFNs prepared with XD and SF had a significantly reduced fat content (P < 0...
July 3, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29939404/enzymatic-modification-of-rice-bran-polysaccharides-by-enzymes-from-grifola-frondosa-natural-killer-cell-cytotoxicity-and-antioxidant-activity
#14
Shiyao Liu, Xuhui Zhuang, Xiaolin Zhang, Wei Han, Yuchun Liu, Dongmei Sun, Weiqun Guo
Rice bran polysaccharides (RBPSs) are the major active constituents of rice bran (RB). In this study, we utilized intracellular enzymes from Grifola frondosa to modify RBPSs, which were extracted from RB using ultrasound. To enhance the effect on natural killer (NK) cell cytotoxicity of modified polysaccharides (mRBPSs) generated from RBPSs, an orthogonal test (L9 [3]4 ) was employed to optimize the modification conditions. Based on the results of a single-factor test, the enzyme to polysaccharide ratio, reaction temperature, reaction pH, and reaction time were the main factors affecting mRBPSs-enhanced NK-cell cytotoxicity...
June 25, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29928786/antitumor-perspectives-of-oleuropein-and-its-metabolite-hydroxytyrosol-recent-updates
#15
REVIEW
Muhammad Imran, Muhammad Nadeem, Syed Amir Gilani, Shaista Khan, Muhammad Wasim Sajid, Rai Muhammad Amir
Olive fruit is a significant and promising source of potential bioactive compounds such as oleuropein and hydroxytyrosol. Oleuropein is the ester of elenolic acid and 3,4-dihydroxyphenyl ethanol (HT). It is the main glycoside in olives, the degradation of which results in the formation of hydroxytyrosol in olive oil. Both plays a significant role in the reduction of coronary heart diseases and a certain type of cancers. Both olive oil phenols have an effective role counter to cell proliferation, cell growth, migration, invasion, and angiogenesis...
June 21, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29928780/evaluation-of-micronutrient-sensors-for-food-matrices-in-resource-limited-settings-a-systematic-narrative-review
#16
REVIEW
Anna W Waller, Jennifer L Lotton, Shashank Gaur, Jeanette M Andrade, Juan E Andrade
In resource-limited settings, mass food fortification is a common strategy to ensure the population consumes appropriate quantities of essential micronutrients. Food and government organizations in these settings, however, lack tools to monitor the quality and compliance of fortified products and their efficacy to enhance nutrient status. The World Health Organization has developed general guidelines known as ASSURED (Affordable, Sensitive, Specific, User-friendly, Rapid and Robust, Equipment-free, and Deliverable to end-users) to aid the development of useful diagnostic tools for these settings...
June 21, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29928765/interactions-with-8-anilinonaphthalene-1-sulfoniac-acid-ans-and-surface-hydrophobicity-of-black-gram-vigna-mungo-phaseolin
#17
Maithili Deshpande, S K Sathe
Surface hydrophobicity (SH) properties of the trimeric storage protein phaseolin (black gram phaseolin [BGP]) of black gram (Vigna mungo) were investigated using 8-anilinonaphthalene-1-sulfonate (ANS) as an extrinsic fluorescent probe. The emission maxima of fluorescence spectra of BGP:ANS complex were blue-shifted to 455 nm as compared to 515 nm for the free ANS. Saturation binding occurred at a dye-to-protein ratio of about 30:1. The quantum yield of the complex increased with increasing ionic strength. The Kd values were 1...
June 21, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29905952/detection-and-verification-of-the-viable-but-nonculturable-vbnc-state-of-escherichia-coli-o157-h7-and-listeria-monocytogenes-using-flow-cytometry-and-standard-plating
#18
George Kwabena Afari, Yen-Con Hung
The use of electrolyzed oxidizing (EO) water to inactivate microorganisms on foods has been extensively studied and shown to be effective. However, the prospect of the formation of "viable but nonculturable" (VBNC) cells in pathogens after low free chlorine concentration (FCC) treatments under high organic loads presents safety concerns. This study investigated the effect of EO water FCC on inducing Escherichia coli O157:H7 and Listeria monocytogenes into the VBNC state and studied possible resuscitation triggering procedures of the VBNC cells...
July 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29905949/are-processed-bilberry-products-a-good-source-of-phenolics
#19
Zala Zorenc, Robert Veberic, Maja Mikulic-Petkovsek
Bilberries are processed into different food products and beverages. Therefore, we studied how various bilberry items (puree, infusion, liqueur, and fresh and pasteurized juices) differ in secondary metabolites as compared to the fresh fruit. For this purpose, we identified phenolics with a liquid chromatography-mass spectrophotometry (LC-MS) system and compared phenolic profiles and phenolic contents in various bilberry products prepared from the same raw material. Our results show that processing significantly affected the biochemical pattern and levels of phenolics...
July 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29905948/migration-of-water-in-litopenaeus-vannamei-muscle-following-freezing-and-thawing
#20
Qi Deng, Yaling Wang, Lijun Sun, Jianrong Li, Zhijia Fang, Ravi Gooneratne
Water and protein are major constituents of shrimp, any changes in protein and the state of water influence the quality of shrimp. Therefore, a study to examine the law of moisture migration and protein denaturation under different freezing and thawing conditions is important. The proton density images of thawed frozen-shrimp revealed that the water loss during quick-freezing was much greater than that during slow freezing or microfreezing. At room temperature (25 °C), the water loss from brine-thawing was more than still-water thawing and still-water thawing was more than thawing spontaneously...
June 15, 2018: Journal of Food Science
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