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Nutritional quality and safety aspects of wild vegetables consume in Bangladesh

Asian Pacific Journal of Tropical Biomedicine 2016年第2期6卷 125-131页

作者： Miah Mohammed Abdus Satter Mohammed Murtaza Reza Linkon Khan Syeda Absha Jabin Nusrat Abedin Mohammed Faridul Islam Badhan Shaha Institute of food Science and technology Bangladesh Council of Scientific and Industrial Research (BCSIR) Department of food Science and technology Moulana Bhasani University BCSIR laboratories Dhaka Bangladesh Council of Scientific and Industrial Research (BCSIR)

Objective: To evaluate the nutritional composition, including major minerals, essential trace elements and toxic heavy metals of five different wild vegetables Dhekishak(Dryopteris filix-mas), Helencha(Enhydra fluctuans), Kalmishak(Ipomoea aquatica),Patshak(Corchorus capsularis) and Shapla stem(Nymphaea stellata) and their safety ***: Proximate parameters moisture, ash, fat, fiber, protein, carbohydrate and energy; major minerals Na, K, Ca and Mg; trace elements Fe, Zn and Cu; and toxic heavy metals Pb, Cd, Cr, Ni and Hg were evaluated in the selected wild vegetables using the standard food analysis ***: The results from nutritional analysis showed that all the wild vegetables used in this study had a low content of crude fat and high content of moisture, ash, crude protein,crude fiber, carbohydrate and energy having the recommended dietary allowances. The vegetables were also rich in major minerals Na, K, Ca and Mg, sufficient in essential trace elements Fe, Cu and Zn while the heavy metals Pb, Cr and Ni were detected higher in amount in all the vegetables except Patshak than the limits recommended by food and Agriculture Organization/World Health Organization. The heavy metals Cd and Hg were not detected in any ***: The outcome of this study suggests that the wild vegetables have very good nutritional potential to meet the recommended dietary allowances, but special awareness should be taken for public health concern about the high level of Pb, Cr and Ni which exceed the food and Agriculture Organization/World Health Organization recommended limits for the metals in vegetables.

关键词： Wild vegetables Nutritional quality Mineral contents Heavy metals Safety aspects

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Memory enhancement of the new tryptamine-like components in the walnut kernel

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food Bioscience 2023年第2期52卷 396-403页

作者： Yida Xu Yongli Ye Xiulan Sun State Key Laboratory of food Science and technology School of Food Science and TechnologyNational Engineering Research Center for Functional FoodSynergetic Innovation Center of Food Safety and Quality ControlJiangnan

Walnut kernel has been applied in daily diets for thousands of years with its memory enhancement *** further observing the effect of memory enhancement,the walnut kernel was extracted and separated into active parts,with the evaluation in mice.30%ethanol elution from AB-8 macroporous resin showed a decreased escape latency time and increased cumulative time and crossing frequency through the Morris *** also increased the latency time and decreased jumps in the step-down *** results indicated the memory enhancement effect of the *** further separation and purification,four compounds were acquired with tryptamine-like structures first found in the walnut kernel,and compounds III and IV were new *** III showed decreased escape latency time,increased cumulative time,increased crossing frequency through the Morris test,and increased latency time,decreased jumps in the step-down *** III also alleviated acetylcholinesterase activity and promoted acetylcholine transferase *** silico docking and molecular dynamic studies displayed the most polar interactions of compound III on 5-hydroxytryptamine receptor 4(5-HTR4)with the most polar interactions and the lowest binding energies,and anti-degeneration effect to monoamine oxidase A(MAO-A)with the high binding energy and sizeable steric *** results illustrated the memory enhancement of compound III in the walnut kernel,indicating more potential activities of tryptamine-like components and more applications for walnut kernel in clinical use or daily diets.

关键词： Walnut kernel Mice Evaluation Tryptamine

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Anti-hypercholesterolemic effect of kenaf(Hibiscus cannabinus L.)seed on high-fat diet Sprague dawley rats

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Asian Pacific Journal of Tropical Medicine 2015年第1期8卷 6-13页

作者： Ng Shy Kai Tee Ai Nee Elaine Lai Chia Ling Tan Chin Ping Long Kamariah Nyam Kar Lin Department of food Science and Nutrition Faculty of Applied SciencesUCSI University Department of food technology Faculty of Food Science and TechnologyUniversiti Putra Malaysia Malaysian Agricultural research & Development Institute

Objective:To determine? the anlihypercholesterolemic effects of kenaf seed samples and compare with the commercial hypocholesterolemic drug on serum lipids profiles and malondialdehyde(MDA) level in the ***:Kenaf seed oil(KSO),microencapsulated kenaf seed oil(MKSO),kenaf seed extract(KSE) and defatted kenaf seed meal(DKSM) were prepared and phytocHemicals screening on these samples were done prior in viro *** compounds in *** quantified using high performance liquid *** were 40(divided in eight diet groups of 5) male Sprague dawley rats adapted lo normal standard diet or hypercholesterolemic diet(HD) with or without the treatment of these kenaf samples for 32 ***:All the kenaf samples exhibited to contain most of the major *** possessed gallic acid,tannic acid,*** acid,syringic acid,sinapic acid,ferulic acid,naringin acid,and protocatechuic *** significant higher(P<0.05) serum total cholesterol,low density lipoprotein cholesterol and MDA levels in HD group without treatment than the normal control group suggested the hypercholesterolemia was induced by the Incorporation of cholesterol into *** exhibited higher cholesterol-lowering properties due to the significant lower(P<0.05)in serum triglycerides,total cholesterol and MDA *** showed the highest efficiency of cholesterol-lowering activity,followed by *** and ***:*** and KSE appeared lo have comparable anti-hypercholesterolemic effect with the commercial hypocholesterolemic ***,kenaf seed could be used as an alternative natural source lo replace the synthetic hypocholosterolemic drugs.

关键词： Hibiscus cannabinus Hypercholesterolemia Phytochemical screening Phenolic compounds Sprague dawley Oxidative stress

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Aqueous Components of Tomato Accelerate Alcohol Metabolism by Increasing Pyruvate Level

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food and Nutrition Sciences 2014年第10期5卷 870-879页

作者： Yusuke Ushida Shunji Oshima Koichi Aizawa Hiroyuki Suganuma Akihiro Nemoto Hiroko Ishikiriyama Yasushi Kitagawa research & Development Division Kagome Co. Ltd. Tochigi Japan research laboratories for fundamental technology of food Asahi Group Holdings Ltd. Ibaraki Japan

Consumption of food while drinking alcohol has been suggested to play important roles in alleviating the physiological and pharmacological influences of alcohol. Vegetables are believed to provide health benefits, but there is little evidence for their influence on the effects of alcohol consumption. The present study aimed to investigate the effect of a common vegetable, tomato, on alcohol metabolism. In a randomized, controlled, crossover study with12 Japanese healthy men aged between 24 and 56 years, drinking tomato juice containing 5% (v/v) alcohol (TJAlc) significantly attenuated the elevation of blood ethanol level and subsequently increased the level of acetate compared with a water-based alcoholic beverage with an equal dose of alcohol (0.4 g/kg body weight). Significantly higher levels of blood pyruvate and lactate were also observed in subjects who had consumed TJAlc compared with those consuming the water-based beverage. Additionally, a biphasic alcohol effects scale method showed that subjective feelings for alcohol-induced stimulant effects were significantly enhanced by drinking TJAlc. Animal experiments using male Sprague Dawleyrats suggested that the effect on blood biomarkers was attributable to the serum fraction of tomato (TS), which largely consisted of aqueous compounds, but not lipophilic compounds such as the carotenoid lycopene. Furthermore, it was suggested the TS possibly included potent compound(s) in addition to alanine, glutamine, and citric acid, all of which have previously been reported to affect alcohol metabolism. Administration of TS clearly increased the activity of NAD (H)-dependent enzymes such as lactate-(LDH), alcohol-, and aldehyde-dehydrogenase in rat liver cytosols. These findings suggest that aqueous compound(s) in tomato promote alcohol metabolism, probably through increasing pyruvate level, enhancing LDH activity, and improving the ratio of NAD to NADH.

关键词： Tomato Blood Ethanol Level Pyruvate Lactate Dehydrogenase Alcohol Metabolism

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Studies on the Specific Degranulation of Mast Cell Sensitized by Several Allergens in vitro

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Cellular & Molecular Immunology 2009年第2期6卷 149-153页

作者： Yongchao Guo Zhenxing Li Hong Lin Haider Samee Jamil Khalid food safety laboratory Ocean University of China Qingdao 266003. Shandong China Pakistan Council for Scientific and Industrial research laboratories Complex Karachi Pakistan

food allergy is a major health issue worldwide. Mast cells play a very important role in the immediate hypersensitivity for which mast cell degranulation needs to be studied extensively. In this study, an approach was taken to study the characteristics of sensitized mast cell degranulation in vitro, which associated with the study of mast cells and animal models. BALB/c mice were immunized respectively by several food allergens, then blood and peritoneal mast cells were collected at different time points. A dynamic determination was carried out between mast cells and serumal IgE. Comparative analysis on sequential time points showed that there was a close coincidence between mast cell degranulation and IgE antibody titers in sensitized BALB/c mice. Furthermore, it is interesting that sensitized mast cells could implement specific degranulation against the challenges in vitro, but the closely tropomyosins induced mast cell degranulation displayed cross reactions. This is very similar to IgE resisting the allergens in vivo. The study disclosed some characteristics on mast cells, coming from sensitized BALB/c mice, degranulation in vitro.

关键词： food allergy allergen mast cell degranulation

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Individual Differences in Blood Alcohol Concentrations after Moderate Drinking Are Mainly Regulated by Gastric Emptying Rate Together with Ethanol Distribution Volume

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food and Nutrition Sciences 2012年第6期3卷 732-737页

作者： Shunji Oshima Takeshi Haseba Chiaki Masuda Ema Kakimi Manabu Sami Tomomasa Kanda Youkichi Ohno Department of Legal Medicine Nippon Medical School Tokyo Japan. research laboratories for fundamental technology of food Asahi Group Holdings Ltd. Ibaraki Japan

Blood alcohol concentration (BAC) differs greatly among individuals, even when people of the same sex and age drink alcohol under the same drinking conditions. In this study, we investigated the main factors involved in the internal reg-ulation of individual differences in BAC, focusing on the alcohol dehydrogenase 1B (ADH1B) genotype, blood acetal-dehyde concentration (BAcH), amount of habitual alcohol consumption, pharmacokinetic parameters of BAC, distribution volume of ethanol (Vd), and gastric emptying rate (GER) under the same drinking conditions. Twenty healthy Japanese males aged between 40 and 59 years old and having the aldehyde dehydrogenase 2 (ALDH2) genotype of ALDH 2*1/*2 were recruited for this study. The subjects were given 0.32 g ethanol/kg body weight in the form of commercially available beer (5%, v/v). The results showed that BAC-max differed greatly among individuals with a more than two-fold variation. When the BAC-time curve was compared among ADH1B genotypes (ADH1B*1/*1, *1/*2, and *2/*2), there were no differences in BAC among the genotypes. Although BAcH, monthly alcohol consumption, elimination rate of blood ethanol (β value) and ethanol disappearance rate from the body (EDR) can affect BAC, all of them had no correlations with BAC-max. However, Vd (liter/kg), ΔPlasma glucose concentration (ΔPGC = PGC30 min ? PGC0 min) and the serum concentration of gastric inhibitory polypeptide (GIP) did correlate with BAC-max. Model 2 in multiple linear regression analysis showed the optimal model for Vd and GIP with positive correlations with BAC-max. As GIP and ΔPGC are both reflected by gastric emptying rate (GER), we concluded that the individual differences in BAC after moderate drinking are mainly regulated by GER together with Vd. These findings demonstrate that together with body water content, the gastrointestinal tract plays an important role in the regulation of individual differences in BAC, involving first pass metabolism of ethanol.

关键词： Individual Differences Blood Ethanol Concentration Moderate Drinking Gastric Emptying Rate Distribution Volume

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Hot air treatment activates defense responses and induces resistance against Botrytis cinerea in strawberry fruit

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Journal of Integrative Agriculture 2016年第11期15卷 2658-2665页

作者： JIN Peng ZHENG Cong HUANG Yu-ping WANG Xiao-li LUO Zi-sheng ZHENG Yong-hua College of food Science and technology Nanjing Agricultural University College of Life Science and food Engineering Huaiyin Institute of Technology College of Biosystems Engineering and food Science Zhejiang University

The effect of hot air（HA, 45°C, 3.5 h） treatment on reducing gray mold caused by Botrytis cinerea in strawberry fruit and the possible mechanisms were investigated. The results showed that HA treatment significantly reduced lesion diameter and enhanced activities of chitinase（CHI）, β-1,3-glucanase and phenylalanine ammonia-lyase（PAL） in strawberry fruit. Total phenolic contents were also increased by HA treatment. The activities of antioxidant enzymes including superoxide dismutase（SOD）, catalase（CAT） and ascorbate peroxidase（APX） were higher in HA treated strawberry fruit than those in control. Expression of three defense related genes such as CAT, CCR-1 allele and PLA6 was greatly induced in HA treated strawberry fruit with or without inoculation by B. cinerea. In addition, the in vitro experiment showed that HA treatment inhibited spore germination and tube growth of B. cinerea. These results suggested that HA treatment directly activated disease resistance against B. cinerea in strawberry fruit without priming response and directly inhibiting growth of B. cinerea.

关键词： strawberry hot air postharvest disease induced resistance Botrytis cinerea

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Plasmonics for solid-state lighting: enhanced excitation and directional emission of highly efficient light sources

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Light(Science & Applications) 2013年第1期2卷 163-169页

作者： Gabriel Lozano Davy J Louwers Said RK Rodrı´guez Shunsuke Murai Olaf TA Jansen Marc A Verschuuren Jaime Gomez Rivas Center for Nanophotonics FOM Institute AMOLFc/o Philips Research LaboratoriesEindhovenThe Netherlands Philips research laboratories EindhovenThe Netherlands Department of Material Chemistry Graduate School of EngineeringKyoto UniversityKyotoJapan COBRA research Institute Eindhoven University of TechnologyEindhovenThe Netherlands

Light sources based on reliable and energy-efficient light-emitting diodes (LEDs) are instrumental in the development of solid-statelighting (SSL). Most research efforts in SSL have focused on improving both the intrinsic quantum efficiency (QE) and the stability oflight emitters. For this reason, it is broadly accepted that with the advent of highly efficient (QE close to 1) and stable emitters, thefundamental research phase of SSL is coming to an end. In this study, we demonstrate a very large improvement in SSL emission (above70-fold directional enhancement for p-polarized emission and 60-fold enhancement for unpolarized emission) using nanophotonicstructures. This is attained by coupling emitters with very high QE to collective plasmonic resonances in periodic arrays of aluminumnanoantennas. Our results open a new path for fundamental and applied research in SSL in which plasmonic nanostructures are able tomold the spectral and angular distribution of the emission with unprecedented precision.

关键词： diffraction fluorescence LED nanophotonics plasmonics

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Physicochemical properties and antibacterial application of silver nanoparticles stabilized by whey protein isolate

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food Bioscience 2022年第2期46卷 498-506页

作者： Aoqiong Zeng Beibei Wang Cheng Zhang Ruijin Yang Shuhuai Yu Wei Zhao State Key Laboratory of food Science and technology School of Food Science and TechnologyJiangnan University1800 Lihu AvenueWuxiJiangsu214122PR China National Engineering research Center for Functional food Jiangnan University1800 Lihu AvenueWuxiJiangsu214122PR China

Nano metal materials have been widely explored to be applied in medical,environmental,and material *** these nanoparticles,especially silver nanoparticles(AgNPs),have drawn increasing attention for antimicrobial *** researchers are keen on the development of the biologically friendly capping reagents for the synthesis of AgNPs,instead of unfriendly organic *** this study,the liquid chemical reduction method was used to synthesize AgNPs with edible whey protein isolate(WPI)as a capping *** WPI-AgNPs had a broad size distribution(average diameter of 138.6 nm),and their dimensions could be readily controlled in the range of 22.5-149.6 nm by introducing different concentrations of ***,it was confirmed that WPI-AgNPs were formed through two mechanisms,which were respectively reduced in situ(without the addition of NaCl)and ex situ(in presence of NaCl)to yield silver *** WPI-AgNPs synthesized in presence of 10 mM of NaCl as mediation reagent were stable at room temperature or 4℃ up to 3 ***,the synthesized WPI-AgNPs had a good antibacterial activity toward pathogens including Gram-negative *** and Gram-positive *** results shed light on method and capping reagent to stabilize silver nanoparticles,which highlighted the potential of WPI and chloride in metal nanoparticle synthesis.

关键词： Silver nanoparticles Whey protein isolate Chloride Liquid chemical reduction method

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Rapid and easy determination of morphine in chafing dish condiments with colloidal gold labeling based lateral flow strips

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food Science and Human Wellness 2019年第1期8卷 40-45页

作者： Wei Chen Xin-ni Li Qian Wu Li Yao Jianguo Xu School of food and Biological Engineering Engineering Research Center of Bio-processMOEHefei University of TechnologyHefei230009China

In order to enhance the flavor of chafing dish and increase the attraction of consumers,the poppy shell is reported to be illegally added to the condiments of chafing *** this research,a rapid,simple,and convenient method based on the classic immunochromatographic lateral flow strip(LFS)with gold nanoparticles(GNPs)labeling was developed for easy monitoring of morphine(MOP),an effective component of poppy *** optimized conditions,this developed LFS can well realize the detection of target MOP in the condiments of chafing dish in less than 10 min without any complicated *** limit of detection(LOD)can be achieved as low as 0.1 ppb for standard MOP or the MOP spiked condiments of chafing *** these results of the research strongly demonstrate that this established LFS method can be successfully applied in practical rapid and accurate on-site screening of poppy shell in condiments of chafing dish.

关键词： Morphine(MOP) Gold nanoparticles(GNPs) Lateral flow strip(LFS) Chafing dish condiments

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