Fungal Bioprocessing to Improve Quality of Pennycress Meal as a Potential Feeding Ingredient for Monogastric Animals

IF 3.3 3区农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Fermentation-Basel Pub Date : 2023-08-05 DOI:10.3390/fermentation9080732

Xiao Sun, K. Boardman, David Marks, D. Wyse, Bo Hu

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引用次数: 1

Abstract

Pennycress, as an annual cover crop in North America, has around 30–36% of oil and 20–25% of crude protein. Pennycress oil can be converted into biodiesel, while pennycress meal (PM) has limited use in animal nutrition, mainly due to the high content of glucosinolates and indigestible fiber. The nutrition of PM can be improved by processing with edible fungi. This study used Pleurotus ostreatus (PO), Rhizopus oryzae (RO), Aspergillus oryzae (AO), and Mucor circinelloides (MC) to ferment PM (60% moisture content) at 28 °C for 6 to 12 days. Compared to non-fermented PM, essential amino acids such as threonine (Thr) in PO and AO and tryptophan (Trp) and lysine (Lys) in all fungal treatments were enriched. PM fermented by all fungi resulted in concentrated digestible fiber (cellulose) at 12–46%. RO, AO, and MC-fermented PM had degraded sinigrin by 81, 33, and 12% and phytate by 47%, 37%, and 33%, with a corresponding increase in free P by 44%, 1.17-fold, and 89%, respectively. In addition, zearalenone was reduced by 97%, 50%, 39.3%, and 32% in PO, RO, AO, and MC-fermented PM, respectively. This study demonstrated the feasibility of fungi to improve the feeding value of PM, potentially promoting the economic return of pennycress plantations.

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真菌生物处理提高单胃动物pennyress粕品质的研究

Pennycress是北美的一种一年生覆盖作物，其油脂含量约为30-36%，粗蛋白质含量约为20-25%。Pennycress油可以转化为生物柴油，而Pennycress粉（PM）在动物营养中的用途有限，主要是由于硫代葡萄糖苷和不易消化的纤维含量高。用食用菌加工可以改善PM的营养状况。本研究使用平菇（PO）、米根霉（RO）、米曲霉（AO）和环毛霉菌（MC）在28°C下发酵PM（60%水分）6-12天。与未发酵PM相比，所有真菌处理中的必需氨基酸如PO和AO中的苏氨酸（Thr）以及色氨酸（Trp）和赖氨酸（Lys）都得到了富集。所有真菌发酵的PM产生浓度为12-46%的可消化纤维（纤维素）。RO、AO和MC发酵的PM降解了81%、33%和12%的左旋糖苷，降解了47%、37%和33%的植酸酶，游离磷分别增加了44%、1.17倍和89%。此外，在PO、RO、AO和MC发酵的PM中，玉米赤霉烯酮分别减少了97%、50%、39.3%和32%。本研究证明了真菌提高PM饲料价值的可行性，有可能促进三角菊种植园的经济效益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fermentation-Basel BIOTECHNOLOGY & APPLIED MICROBIOLOGY-

CiteScore

3.80

自引率

18.90%

发文量

594

审稿时长

7 weeks

期刊介绍： Fermentation-Basel is an international open access journal published by MDPI, focusing on fermentation-related research, including new and emerging products, processes and technologies, such as biopharmaceuticals and biotech drugs. The journal enjoys a good reputation in the academic community and provides a high-impact forum for researchers in the field of bioengineering and applied microbiology.