bioefficiency

生物效率
  • 文章类型: Journal Article
    豆类,包括豆子,豌豆,鹰嘴豆,和扁豆,在世界范围内种植,是均衡和营养饮食的重要组成部分。每个豆类品种都含有独特的蛋白质水平,淀粉,纤维,脂质,矿物,和维生素,在各种行业的潜在应用。副产品,如船体,富含生物活性化合物,为增值利用和以健康为中心的产品开发提供承诺。采用各种提取方法来提高豆科植物副产品的蛋白质提取率,在各种食品中找到应用,如肉类类似物,面包,和甜点。此外,必需脂肪酸,类胡萝卜素,,和多酚在豆科植物的几种残留馏分中含量丰富。这些生物活性类别与降低心血管疾病的发病率有关,慢性炎症,一些癌症,肥胖,和2型糖尿病,在其他相关健康状况中。本贡献对主要豆类及其副产品的营养和生物活性成分进行了全面审查。此外,豆类消费的生物可及性和生物利用度方面,以及体外和体内有关其健康影响的证据。
    Legumes, including beans, peas, chickpeas, and lentils, are cultivated worldwide and serve as important components of a balanced and nutritious diet. Each legume variety contains unique levels of protein, starch, fiber, lipids, minerals, and vitamins, with potential applications in various industries. By-products such as hulls, rich in bioactive compounds, offer promise for value-added utilization and health-focused product development. Various extraction methods are employed to enhance protein extraction rates from legume by-products, finding applications in various foods such as meat analogs, breads, and desserts. Moreover, essential fatty acids, carotenoids, tocols, and polyphenols are abundant in several residual fractions from legumes. These bioactive classes are linked to reduced incidence of cardiovascular diseases, chronic inflammation, some cancers, obesity, and type 2 diabetes, among other relevant health conditions. The present contribution provides a comprehensive review of the nutritional and bioactive composition of major legumes and their by-products. Additionally, the bioaccessibility and bioavailability aspects of legume consumption, as well as in vitro and in vivo evidence of their health effects are addressed.
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  • 文章类型: Journal Article
    类胡萝卜素的加工适应性和生物利用度差往往限制了它们在食品工业中的应用。膳食脂肪酸(FAs)是,然而,对类胡萝卜素和肠道吸收有价值的药物,因此,在这项研究中采用了基于蛋白质的封装系统,该系统可以改善岩藻黄质(FUCO)的热和储存稳定性以及肠吸收。结果表明,通过FAs和牛血清白蛋白(BSA)制备的所有非共价连接的胶束均明显提高了FUCO的热稳定性,并增加了其保留率。同时,饱和脂肪酸的引入延长了FUCO的半衰期。动物实验表明,FAs的引入增强了FUCO的口服吸收性和体内抗氧化能力,在体内显示FUCO的独特代谢物,并参与不同的FAs。这些发现有助于开发一种有希望的策略,以同步增强类胡萝卜素的加工适应性和生物效率。
    The poor processing adaptability and bioavailability of carotenoids tend to limit their application in the food industry. Dietary fatty acids (FAs) are, however, valuable agents for the intestinal absorption of carotenoids and, thus, were employed in this study to construct protein-based encapsulation systems that can improve the thermal and storage stability and intestinal absorption of fucoxanthin (FUCO). Results showed that all the non-covalently connected micelles fabricated via FAs and bovine serum albumin (BSA) obviously improved the thermostability of FUCO and increased its retention rate. Simultaneously, the half-life of FUCO was prolonged with the introduction of saturated FAs. The animal experiment revealed that the introduction of FAs enhanced the oral absorbability and in vivo antioxidation of FUCO, displaying distinguished metabolites of FUCO in vivo with the involvement of different FAs. These findings can contribute to the development of a promising strategy for synchronously enhancing the processing adaptability and bioefficiency of carotenoids.
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  • 文章类型: Journal Article
    BACKGROUND: The application of biochar to soil is supposed to alter its adsorption/desorption potential toward pesticides, thereby affecting their bioavailability and efficacy. This is particularly relevant in the case of nematicides because these pesticides are directly applied to soil.
    RESULTS: Biochar was produced from date palm (PB) and eucalyptus (EB) waste at 450 °C and added at a rate of 1% to a sandy soil. The half-life (t½ ) of fenamiphos was increased from 2.7 to 18.3 and 18.6 days in PB- and EB-amended soils, respectively. By contrast, the half-life of cadusafos was unaffected. Freundlich Kf values increased from 1.22 and 0.39 (μg1-Nf g-1 mLNf ) to 4.49 and 6.84 in 1% PB-amended soil, and to 3.49 and 4.62 in 1% EB-amended soil for cadusafos and fenamiphos, respectively. Plant uptake of both nematicides in tomato seedlings was reduced by approximately 97% (cadusafos) and 85% (fenamiphos). Although nematicide efficacy against Meloidogyne incognita was not altered at the recommended dosage, it was negatively affected at a half-dose rate. Under these conditions, it decreased from 43.1% in unamended sandy soil to only 18.3% in 1% PB-amended soil.
    CONCLUSIONS: Biochar addition increased the sorption capacity of soil. This resulted in a decrease of nematicide bioavailability, together with a reduction of both the dissipation rate and uptake by tomato plants. © 2018 Society of Chemical Industry.
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  • 文章类型: Journal Article
    一个多世纪以来,对医疗保健环境中可疑病原体通过空气传播的调查对研究人员构成了挑战。每种病原体都对环境条件和它所经历的机械应力表现出独特的反应,采样装置的选择不明显。我们的目的是回顾生物气溶胶采样,取样设备,和方法论。进行了全面的文献检索,使用电子数据库检索有关生物气溶胶采样的英文论文。该综述描述了流行的生物气溶胶采样装置的机制,例如撞击器,旋风,冲击器,和过滤器,解释他们的优点和缺点,以及对微生物生物效率的影响。描述了许多成功的研究,这些研究指出了生物气溶胶采样的最佳实践,从使用小型个人采样器监测工人的病原体暴露,到在各种医疗保健环境中收集空气传播微生物的大型静态采样器。最重要的是,要求研究应通过在实验室条件下确定所选采样器和病原体的生物效率来开始。从这样的基础上,在该领域的复杂性中对生物气溶胶材料进行采样具有成功捕获低浓度空气传播病原体的更大确定性。从实验室到现场使用,这篇综述使研究者能够就生物气溶胶采样器的选择及其应用做出明智的决定.
    Investigations into the suspected airborne transmission of pathogens in healthcare environments have posed a challenge to researchers for more than a century. With each pathogen demonstrating a unique response to environmental conditions and the mechanical stresses it experiences, the choice of sampling device is not obvious. Our aim was to review bioaerosol sampling, sampling equipment, and methodology. A comprehensive literature search was performed, using electronic databases to retrieve English language papers on bioaerosol sampling. The review describes the mechanisms of popular bioaerosol sampling devices such as impingers, cyclones, impactors, and filters, explaining both their strengths and weaknesses, and the consequences for microbial bioefficiency. Numerous successful studies are described that point to best practice in bioaerosol sampling, from the use of small personal samplers to monitor workers\' pathogen exposure through to large static samplers collecting airborne microbes in various healthcare settings. Of primary importance is the requirement that studies should commence by determining the bioefficiency of the chosen sampler and the pathogen under investigation within laboratory conditions. From such foundations, sampling for bioaerosol material in the complexity of the field holds greater certainty of successful capture of low-concentration airborne pathogens. From the laboratory to use in the field, this review enables the investigator to make informed decisions about the choice of bioaerosol sampler and its application.
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