GB/T 5917-1986
Replaced
GB/T 18246-2019
Active
National standards
GB/T 18246-2019 Determination of amino acids in feeds
GB/T 18246-2019 Determination of amino acids in feeds
Basic Information
Standard Code:
GB/T 18246-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Animal and poultry feed and additives
ICS Name:
\nFeeds
Publish Date:
2019-12-10
Implement Date:
2020-07-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国饲料工业标准化技术委员会(SAC/TC 76)
Pages:
12 pages
Scope
本标准规定了饲料中总氨基酸(肽键结合和游离的)和游离氨基酸(天然和添加的)测定方法,包括常规酸水解法、氧化酸水解法、碱水解法和酸提取法。常规酸水解法适用于饲料原料、配合饲料、浓缩饲料、精料补充料和添加剂预混合饲料中含硫氨基酸(胱氨酸、半胱氨酸、蛋氨酸)和色氨酸以外的其他氨基酸(天门冬氨酸、苏氨酸、丝氨酸、谷氨酸、脯氨酸、甘氨酸、丙氨酸、缬氨酸、异亮氨酸、亮氨酸、酪氨酸、苯丙氨酸、赖氨酸、组氨酸、精氨酸)含量的测定。氧化酸水解法适用于饲料原料、配合饲料、浓缩饲料和精料补充料中含硫氨基酸(胱氨酸、半胱氨酸和蛋氨酸)的测定。以偏重亚硫酸钠为氧化终止剂时,可测定除酪氨酸、色氨酸以外的其他蛋白水解氨基酸;以氢溴酸为终止剂时,可测定除酪氨酸、苯丙氨酸、组氨酸和色氨酸以外的其他蛋白水解氨基酸。碱水解法适用于饲料原料、配合饲料、浓缩饲料和精料补充料中色氨酸的测定。酸提取法适用于配合饲料、浓缩饲料、精料补充料和添加剂预混合饲料中游离氨基酸的测定。各氨基酸的定量限见附录A中表A.1。
Development Information
Drafting Units:
中国农业科学院农业质量标准与检测技术研究所[国家饲料质量监督检验中心(北京)]
Drafting Persons:
贾铮、赵根龙、李兰、樊霞、肖志明、李阳、刘晓露
Replace the following standards
Referenced Standards
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 15399-1994 Determination of sulfur amino acids in feedstuffs—Ion exchange chromatography
GB/T 15399-2018 Determination of sulfur amino acids in feeds—Ion exchange chromatography
GB/T 15400-1994 Determination of tryptophan in feedstuffs—Spectrophotometry
GB/T 15400-2018 Determination of tryptophan in feeds
GB/T 20195-2006 Animal feeding stuffs—Preparation of test samples
GB/T 20195-2024 Animal feed—Preparation of test samples
JJG 1064-2011 Automatic Amino Acid Analyzer
Related Standards
GB/T 6435-1986
Replaced
GB/T 6435-1986 Method for the determination of moisture in feedstuffs
GB 7294-1987
Replaced
GB 7294-1987 Feed additive—Vitamin K3 (menadione sodium bisulfite)
GB 7298-1987
Replaced
GB 7298-1987 Feed additive—Vitamin B6
GB 7299-1987
Replaced
GB 7299-1987 Feed additive—Dextro calcium pantothenate
GB 7300-1987
Replaced