Radiation pasteurised oil palm empty fruit bunch fermented with Pleurotus sajor-caju as feed supplement to ruminants

Awang, Mat Rasol; Mutaat, Hassan Hamdani; Mahmud, Mohd; Husain, Wan Badrin Wan; Osman, Tajuddin; Bakar, Khomsaton Abu; Kassim, Asmahwati; Mahmud, Zal U'yun Wan; Manaf, Ishak; Kume, Tamikazu; Hirano, Shoji

doi:10.1016/0969-806x(93)90335-r

Cited by 5 publications

(1 citation statement)

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“…Laccase, phenolic oxidase, and manganese oxidase are enzymes released by P. sajor-caju to oxidize phenolic compounds to free radicals (Jeon et al 2012). Pleurotus sajor-caju has been used in solidstate fermentation of pasteurized EFBs to produce a feed supplement for ruminants such as cows and goats (Awang et al 1993;Jeon et al 2012). However, no studies have been undertaken to determine the concentration of phenolic compounds in the vermicomposted EFBs.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Phenolic Compounds in Empty Fruit Bunches in Oyster Mushroom Cultivation and in Vermicomposting

2017

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Analyses of total phenolic compounds were carried out for oil palm empty fruit bunches (EFBs) vermicomposting in oyster mushrooms cultivation. The oyster mushrooms (Pleurotus sajor-caju) were cultivated according to the large-scale vermicomposting trial (LSVT) methods. Both oyster mushrooms cultivation and vermicomposting of EFB with earthworms enhanced the lignin degradation of EFB. Analysis of total phenolic compounds EFB vermicomposting treated with earthworms showed a decrease in total phenolics concentration from 31.1 GAE/100g extract (raw EFB) to 5.66 g GAE/100g extract (after oyster mushroom cultivation) and to less than 1.5 g GAE/100g extract at the end of vermicomposting. Gas chromatography-mass spectrometry (GC-MS) analysis of the mushroom fruiting body, spent mushrooms, and vermicompost showed no trace of phenolphenol, pyrocatechol, 4-hydrobenzoic acid, or antioxidant and flavonoid phenolics, e.g., phenol, 3,4-dimethoxy-, vanillic acid, and cinnamic acid. This indicates that the mushroom fruiting body is fit for human consumption and the final vermicompost is a useful agricultural product without the detrimental effects of spreading phenolics-loaded EFBs on the land.

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Section: Introductionmentioning

confidence: 99%

Analysis of Phenolic Compounds in Empty Fruit Bunches in Oyster Mushroom Cultivation and in Vermicomposting

2017

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Effect of γ‐irradiation on enzymatic digestion of oil palm empty fruit bunch

et al. 1995

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Effect of y-irradiation and combination treatment with alkali on oil palm empty fruit bunch (EFB) was studied to enhance the efliciency of enzymatic digestibility. y-Irradiation enhanced the enzymatic digestibility, and the amounts of released galacturonic acid and neutral sugars from EFB by Driselase were increased with an increase in irradiation dose. The main components of neutral sugars released from EFB were glucose and xylose. EFB treated with alkali and 50 kGy irradiation released 1200 pg g -' of xylose that was twice amount of glucose showing that the combination treatment was effective especially to increase the digestibility of xylan.

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