V2EX peroxide value

Peroxide Value

Definition / 定义

Peroxide value(过氧化值,简称 PV):衡量油脂或含油食品中过氧化物(主要是氢过氧化物)含量的指标,用来反映油脂初期氧化/酸败程度。常用于食用油、坚果、奶粉、肉制品等的品质控制与保鲜评估。单位常见为 meq O/kg(毫当量氧/千克)

Pronunciation / 发音

/prksad vlju/

Examples / 例句

The peroxide value of the cooking oil increased after repeated frying.
反复油炸后,这种食用油的过氧化值升高了。

To ensure shelf stability, the manufacturer tests peroxide value and other oxidation markers throughout storage.
为确保货架期稳定性,生产商会在贮藏期间检测过氧化值及其他氧化指标。

Etymology / 词源

Peroxide 来自 *per-*(表示“过度/超过”)+ oxide(氧化物),指含有 OO(过氧键) 的化合物;value 源自拉丁语 valere(“有价值、有效力”)。合起来 peroxide value 字面即“过氧化物的数值”,在分析化与食品科学中固定指代油脂氧化程度的测定指标。

Related Words / 相关词

Literary Works / 文学作品

  • Official Methods of Analysis of AOAC International(AOAC 官方分析方法汇编;包含油脂氧化与过氧化值等测定方法)
  • Bailey’s Industrial Oil and Fat Products(工业油脂与脂肪产品经典参考书;讨论油脂品质指标与 PV)
  • Fennema’s Food Chemistry(《芬尼马食品化学》;涉及脂质氧化机理与过氧化值等指标)
  • AOCS Official Methods and Recommended Practices(美国油脂化学家协会 AOCS 方法标准;常见 PV 测定规程)
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