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首页> 外文期刊>Food Chemistry >Digestible nutrients and available (ATP) energy contents of two varieties of kiwifruit (Actinidia deliciosa and Actinidia chinensis)
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Digestible nutrients and available (ATP) energy contents of two varieties of kiwifruit (Actinidia deliciosa and Actinidia chinensis)

机译：两种猕猴桃（猕猴桃和中华猕猴桃）的可消化营养成分和有效（ATP）能量含量

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摘要

A model, which combines a dual m vivo-in vitro digestibility assay and stoichiometric relationships describing nutrient catabolism, has been recently developed to allow prediction of the available energy (AE) content of a food in terms of its ATP yield. The model uses the growing pig as an in vivo model for upper gastrointestinal tract digestion in humans. Terminal ileal digesta from the pig are incubated with human faecal inocula (in vitro fermentation model) to simulate human hindgut fermentation. The respective in vivo and in vitro digestibility assays provide predictions of the ileal absorbed and hind-gut-fermented nutrient contents of a food which are then used to predict ATP production post-absorption, based on known stoichiometric relationships. In this study, the model was used to determine the AE contents of fresh, ripe Hayward (Actinidia deliciosa var Hayward) and Hort 16A {Actinidia chinensis var HortJ6A) kiwifruit. Kiwifruit pulp, containing 3 g kg~(-1) of titanium dioxide, included as an indigestible marker, was fed to growing pigs and terminal ileal digesta were collected. Ileal nutrient digestibilities were determined. A sample of digesta was incubated in vitro with a fresh human faecal inoculum and the fermentable organic matter determined. The predicted available (ATP) energy contents of the Hayward and Hortl6A kiwifruits were 5.9 and 6.2 kJ g~(-1) dry matter, respectively, approximately 44-47% of the determined apparent digestible energy (ADE) content. The AE contents of the kiwifruit, expressed relative to the AE content of dextrin (a highly digestible source of glucose) were 0.57 and 0.61 for Hayward and Hortl6A, respectively. Comparable ratios for metabolisable energy (ME) were 0.74 and 0.73. The predicted AE from kiwifruit was much lower than the predicted ME from kiwifruit when compared to dextrin. The ME values overestimate the energy content of kiwifruit that is available to the cell. AE was not only lower than ME but the two energy systems ranked the kiwifruit types differently in terms of energy supply to the body. The relatively low energy content per unit of dry matter and high water content of kiwifruit make kiwifruit an ideal weight loss food.
机译：最近开发了一种模型，该模型结合了体内体外双重消化率测定和描述营养物质分解代谢的化学计量关系，可以根据其ATP产量预测食品的可用能量（AE）含量。该模型将生长中的猪用作体内上消化道消化的体内模型。将猪的回肠末端消化物与人粪便接种物（体外发酵模型）一起孵育，以模拟人后肠发酵。相应的体内和体外消化率测定提供了食品回肠吸收的和后肠发酵的营养成分的预测，然后根据已知的化学计量关系用于预测吸收后的ATP产生。在这项研究中，该模型用于确定新鲜，成熟的海沃德（Actinidia deliciosa var Hayward）和Hort 16A（猕猴桃猕猴桃）的AE含量。将包含3 g kg〜（-1）的二氧化钛的奇异果浆作为难消化的标记物喂给生长中的猪，并收集回肠末端消化液。测定回肠养分消化率。将消化物样品与新鲜的人粪便接种物一起在体外孵育，并确定可发酵的有机物。 Hayward和Hortl6A猕猴桃的预测可用（ATP）能量含量分别为5.9和6.2 kJ g〜（-1）干物质，约为确定的表观可消化能量（ADE）含量的44-47％。相对于糊精（一种高度易消化的葡萄糖来源）的AE含量，猕猴桃的AE含量对于Hayward和Hortl6A分别为0.57和0.61。可比能量（ME）的可比为0.74和0.73。与糊精相比，猕猴桃的预测AE远低于猕猴桃的预测ME。 ME值高估了可用于细胞的奇异果的能量含量。 AE不仅低于ME，而且两个能量系统在对人体的能量供应方面对猕猴桃类型的排名也不同。猕猴桃每单位干物质相对较低的能量含量和较高的水分含量使猕猴桃成为理想的减肥食品。

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  • 来源
    《Food Chemistry》 |2012年第1期|p.67-72|共6页
  • 作者

    Sharon J. Henare; Shane M. Rutherfurd; Lynley N. Drummond; Valentine Borges; Mike J. Boland; Paul J. Moughan;

  • 作者单位

    Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;

    Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;

    ZESPRI™ International Limited, P.O. Box 4043, Maunganui South, Mt. Maunganui, New Zealand;

    Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;

    Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;

    Riddet Institute, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    kiwifruit; available energy; human; metabolisable energy;

    机译：奇异果;可用能量;人可代谢能量;

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