Heat treatment of apple (Malus domestica Borkh.) pomace with different oven temperatures does not enhance its nutritive value

IF 0.8 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2022-08-18 DOI:10.1080/09064702.2022.2113119

Njabulo Manyisa, Thapelo Mmileng, C. M. Mnisi, M. Tsheole

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Abstract

ABSTRACT The study evaluated the effect of heat-treating apple (Malus domestica Borkh.) pomace with different oven temperatures on chemical composition and in vitro ruminal fermentation with or without polyethylene glycol (PEG). Eight replicate samples of air-dried fresh apple pomace (CON) were each oven-dried for 30 min at 60°C (T60), 80°C (T80), 100°C (T100), 120°C (T120), and 130°C (T130). Heat treatment increased (P < 0.05) dry matter, organic matter, neutral detergent fibre and acid detergent fibre of the pomace. The untreated pomace (CON) had the highest crude protein content (94.0 g/kg DM) while the lowest was from T180 (49.84 g/kg DM). The inoculation with PEG had higher cumulative gas production than the one without PEG. Similarly, PEG inoculation increased (P < 0.05) the rate of gas production from fraction b (c), effective gas production, and partitioning factors. It was concluded that heat treatment does not improve the nutritive value of apple pomace.

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用不同的烘箱温度对苹果渣进行热处理，并不能提高其营养价值

摘要本试验研究了不同烘箱温度处理苹果渣对其化学成分和添加或不添加聚乙二醇(PEG)的体外瘤胃发酵的影响。在60°C (T60)、80°C (T80)、100°C (T100)、120°C (T120)和130°C (T130)条件下，将8个风干新鲜苹果渣(CON)重复样品分别烘干30 min。热处理提高了渣的干物质、有机物、中性洗涤纤维和酸性洗涤纤维的含量(P < 0.05)。粗蛋白质含量以CON最高(94.0 g/kg DM)， T180最低(49.84 g/kg DM)。接种PEG的累积产气量高于不接种PEG的累积产气量。同样，PEG接种提高了组分b (c)的产气率、有效产气量和分配因子(P < 0.05)。综上所述，热处理并不能提高苹果渣的营养价值。

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来源期刊

Acta Agriculturae Scandinavica Section A-Animal Science 农林科学-奶制品与动物科学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： Acta Agriculturæ Scandinavica, Section A – Animal Science publishes results of original research in animal science and their applications related to the following topics: -Animal breeding and genetics -Molecular genetics -Animal physiology and reproduction -Nutrition and feeding -Animal behaviour and welfare -General animal husbandry and systems of production, including economic and technical aspects -Hygiene and quality of animal products In addition to original articles, covering basic as well as applied subjects, the journal features review articles and short communications. Acta Agriculturæ Scandinavica, Section A – Animal Science forms part of a trilogy of titles published on behalf of the Nordic Association of Agricultural Scientists (NJF). The series also includes Section B - Soil & Plant Science and the recently launched Section C - Food Economics . Acta Agriculturae Scandinavica A, B and C are available to purchase as a combined subscription. This provides access to all three journals in the series, and is available to institutional subscribers only. For full pricing information, please view the Taylor & Francis Journals Price List here. Scientists in research, teaching and extension with specialised interest in animal science and production.