推荐回答(1个)
下列术语和定义适用于本标准
3.1
压榨菜籽油pressing rapeseed oil
油菜籽经直接压榨制取的油
3.2
浸出菜籽油solvent extraction rapeseed oil
油菜籽经浸出工艺制取的油
3.3
转基因菜籽油genetically modified organism rapeseed oil
用转基因油菜籽制取的油
3.4
低芥酸菜籽油rapeseed oil- low erucic acid
芥酸含量不超过脂肪酸组成3%的菜籽油
3.5
菜籽原油cru de rapeseed oil
未经任何处理的不能直接供人类食用的菜籽油
3.6
成品菜籽油finished product of rapeseed oil
经处理符合本标准成品油质量指标和卫生要求的直接供人类食用的菜籽油
3.7
折光指数refractive index
光线从空气中射入油脂时入射角与折射角的正弦之比值
3.8
相对密度specific gravity
20植物油的质量与同体积20蒸馏水的质量之比值
3.9
碘值iodine value
在规定条件下与100克油脂发生加成反应所需碘的克数
3.10
皂化值 saponification value
皂化1克油脂所需的氢氧化钾毫克数
3.11
不皂化物unsaponifiable matter
油脂中不与碱起作用溶于醚不溶于水的物质包括甾醇脂溶性维生素和色素等
3.12
脂肪酸fatty acid
脂肪族一元羧酸的总称通式为R--COOH
3.13
色泽colour
油脂本身带有的颜色主要来自于油料中的油溶性色素
3.14
透明度transparency
油脂可透过光线的程度
3.15
水分及挥发物moisture and volatile matter
在一定温度条件下油脂中所含的微量水分和挥发物
3.16
不溶性杂质 insoluble impurities
油脂中不溶于石油醚等有机溶剂的物质
3.17
酸值acid value
中和1g油脂中所含游离脂肪酸需要的氢氧化钾毫克数
3.18
过氧化值peroxide value
1Kg油脂中过氧化物的毫摩尔数
3.19
溶剂残留量residual solvent content in oil
1Kg油脂中残留的溶剂毫克数
3.20
加热试验heating test
油样加热至280时观察有无析出物和油色变化情况
3.21
冷冻试验refrigeration test
油样置于0恒温条件下保持一定的时间观察其澄清度
3.22
含皂量saponified matter content
经过碱炼后的油脂中皂化物的含量以油酸钠计
3.23
烟点smoking point
油样加热至开始连续发蓝烟时的温度
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