本文選題：飼用豬油　切入點：質(zhì)量指標　出處：《中國畜牧雜志》2017年07期 　論文類型：期刊論文

【摘要】：本試驗旨在評定熱油爐火煉工藝生產(chǎn)的飼用豬油的質(zhì)量與氧化穩(wěn)定性,為其在飼料中的合理應用和貯存提供依據(jù),也為正在擬寫中的《飼料用油脂動物油脂》國家標準的制定提供有參考價值的基礎數(shù)據(jù)。采集10個不同生產(chǎn)批次的新鮮飼用豬油樣品,測定其主要質(zhì)量指標、衛(wèi)生指標、脂肪酸組成及氧化穩(wěn)定性。結(jié)果表明:豬油的酸價、過氧化值、碘價、皂化值、不皂化物、水分及揮發(fā)物、不溶性雜質(zhì)、丙二醛、加熱減重的平均值分別為0.47 mg KOH/g、0.86 mmol/kg、59.40 g/100g、189.61 mg/g、0.28%、0.097%、0.030%、0.10 mg/kg、0.17%,其中變異系數(shù)最高的為丙二醛(45.45%),最低的為皂化值(1.54%);砷(As)0.1 mg/kg、鉛(Pb)1.0 mg/kg,銅(Cu)含量在0.02~0.91 mg/kg,礦物油、苯并(a)芘(Bap)均未檢出;飼用豬油的脂肪酸組成與相對含量比較穩(wěn)定,不飽和脂肪酸占總脂肪酸含量平均為62.71%;以過氧化值達到5 mmol/kg為判斷標準,基于60℃條件下豬油過氧化值測定結(jié)果,預測6個批次豬油樣品在20、30℃下的平均貨架期分別為238、119 d。綜上可知,本試驗所采集的飼用豬油質(zhì)量達到《食用豬油》和正在擬寫的國標《飼料用油脂動物油脂》的要求,氧化穩(wěn)定性較好,貯存期較長。
[Abstract]:The quality and oxidative stability of the test is to feed the fire hot lard production refining process evaluation, provide the basis for its reasonable application in feed and storage, as well as being written in the "feed data provide a basis reference for the formulation of national standards of animal fats. Fats > fresh forage samples were collected 10 lard different production batches, determination of the main quality indicators, health indicators, fatty acid composition and oxidation stability. The results showed that: lard, acid value, peroxide value, iodine value, saponification value, unsaponifiable matter, moisture and volatile, insoluble impurities, MDA, the average weight loss on heating was 0.47 mg KOH/g 0.86, mmol/kg, 59.40 g/100g, 189.61 mg/g, 0.28%, 0.097%, 0.030%, 0.10 mg/kg, 0.17%, of which the highest coefficient of variation for malondialdehyde (45.45%), the lowest for saponification value (1.54%); arsenic (As) 0.1 mg/kg, lead (Pb) 1 mg/kg (Cu) containing copper In 0.02~0.91 mg/kg, mineral oil, benzo (a) pyrene (Bap) were not detected; feeding lard fatty acid composition and relative content of unsaturated fatty acids, total fatty acid content is 62.71%; with the peroxide value of 5 mmol/kg as a standard, 60 C a lard too determination of oxidation value based on the results of prediction of 6 batches of lard samples at 20,30 DEG. The average shelf life was 238119 D. in summary, were collected to feed lard quality edible lard is < > and < quasi GB written by oil feed animal fat > requirements, oxidation stability, long storage period.

【作者單位】： 華南農(nóng)業(yè)大學動物科學學院華農(nóng)聯(lián)佑飼用油脂研究中心;
【基金】：廣東省教育部產(chǎn)學研項目(2011B090400318) 油脂研究專項(H10154)
【分類號】：S816

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本文編號：1560139