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现行 EN 15634-2:2019
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Foodstuffs - Detection of food allergens by molecular biological methods - Part 2: Celery (Apium graveolens) - Detection of a specific DNA sequence in cooked sausages by real-time PCR 食品.用分子生物学方法检测食品过敏原.第2部分:芹菜(芹菜汁).用实时PCR检测熟香肠中的特定DNA序列
发布日期: 2019-10-02
实施日期: 2019-10-02
本文件规定了乳状香肠(如法兰克福香肠、香肠)中芹菜(芹菜)的检测方法。芹菜的实时PCR(聚合酶链反应)检测基于芹菜(芹菜)甘露醇脱氢酶(GenBank Acc.No.AF067082)基因的101 bp(碱基对)序列。该方法已在添加芹菜的乳化型香肠(巴伐利亚“Leberkäse”)上得到验证。为此,根据乳化香肠的标准程序,制备了含有50%猪肉、25%猪肉脂肪、23%碎冰和1,8%氯化钠、亚硝酸盐、硝酸盐、磷酸盐和抗坏血酸混合物的肉糜。肉糊中加入磨碎的芹菜籽或芹菜根粉至1000毫克\/公斤。用不含芹菜的肉面糊稀释,可获得较低的峰值水平。将面糊塞进肠衣,在65℃下加热60分钟[1]。本文件除EN 15842和FprEN 15634 1外,还将使用。
This document specifies a method for the detection of celery (Apium graveolens) in emulsion-type sausages (e.g. Frankfurter, Wiener). Real-time PCR (polymerase chain reaction) detection of celery is based on an 101 bp (base pair) sequence from the gene of the mannitol dehydrogenase (GenBank Acc. No. AF067082 ) of celery (Apium graveolens). The method has been validated on emulsion-type sausages (Bavarian “Leberkäse”) spiked with celery. For this purpose meat batter containing mass fractions of 50 % pork meat, 25 % pork fat, 23 % crushed ice and 1,8 % of a mixture of sodium chloride, nitrite, nitrate, phosphates and ascorbates was prepared according to a standard procedure for emulsion-type sausage. The meat batter was spiked with either ground celery seeds or celery root powder to 1000 mg/kg. Lower spiking levels were obtained by diluting with celery-free meat batter. The batter was stuffed into casings and heated at 65 °C for 60 min [1]. This document is intended to be used in addition to EN 15842 and FprEN 15634 1.
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归口单位: CEN/TC 275-
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