Fat/ja: Difference between revisions

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~~The term often refers specifically to~~ [[~~triglyceride~~]]~~s (triple esters of~~ [[~~glycerol~~]]~~), that are the main components of~~ [[~~vegetable oil~~]]~~s and of~~ [[~~adipose tissue~~|~~fatty tissue~~]] ~~in animals; or, even more narrowly, to triglycerides that are solid or semisolid at room temperature, thus excluding [[oil]]s. The term may also be used more broadly as a synonym of~~ [[lipid]]~~—any substance of biological relevance, composed of~~ [[carbon]], [[hydrogen]]~~, or~~ [[oxygen]]~~, that is insoluble in water but soluble in~~ [[non-polar solvent]]~~s. In this sense, besides the triglycerides, the term would include several other types of compounds like~~ [[monoglyceride|~~mono-~~]] ~~and~~ [[diglyceride]]s, [[phospholipid]]~~s (such as~~ [[lecithin]]), [[sterol]]~~s (such as~~ [[cholesterol]]), [[wax]]~~es (such as~~ [[~~beeswax~~]]~~), and free fatty acids, which are usually present in human diet in smaller amounts.~~

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 [[nutrition science/ja|栄養学]]、[[biology/ja|生物学]]、[[chemistry/ja|化学]]において、'''脂肪'''とは通常、[[fatty acid/ja|脂肪酸]]の[[ester/ja|エステル]]、またはそのような[[chemical compound/ja|化合物]]の混合物を意味し、最も一般的には生物または[[food/ja|食物]]に存在するものを指す。
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+この用語は、特に[[vegetable oil/ja|植物油]]や動物の[[adipose tissue/ja|脂肪組織]]の主成分である[[triglyceride/ja|トリグリセリド]]（[[glycerol/ja|グリセロール]]のトリプルエステル）を指すことが多く、より狭義には、室温で固体または半固体のトリグリセリドを指す。また、この用語は、[[lipid/ja|脂質]]-[[carbon/ja|炭素]]、[[hydrogen/ja|水素]]、または[[oxygen/ja|酸素]]から構成され、水に溶けないが[[non-polar solvent/ja|非極性溶媒]]に溶ける生物学的に重要な物質-の同義語としてより広く使用されることもある。この意味では、トリグリセリドの他に、[[monoglyceride/ja|モノ]]や[[diglyceride/ja|ジグリセリド]]、[[phospholipid/ja|リン脂質]]（[[lecithin/ja|レシチン]]など）、[[sterol/ja|ステロール]]（[[cholesterol/ja|コレステロール]]など）、[[wax/ja|ワックス]]（[[basewax/ja|蜜蝋]]など）、遊離脂肪酸など、ヒトの食事に少量しか含まれない化合物も含まれる。
-The term often refers specifically to [[triglyceride]]s (triple esters of [[glycerol]]), that are the main components of [[vegetable oil]]s and of [[adipose tissue|fatty tissue]] in animals; or, even more narrowly, to triglycerides that are solid or semisolid at room temperature, thus excluding [[oil]]s. The term may also be used more broadly as a synonym of [[lipid]]—any substance of biological relevance, composed of [[carbon]], [[hydrogen]], or [[oxygen]], that is insoluble in water but soluble in [[non-polar solvent]]s. In this sense, besides the triglycerides, the term would include several other types of compounds like [[monoglyceride|mono-]] and [[diglyceride]]s, [[phospholipid]]s (such as [[lecithin]]), [[sterol]]s (such as [[cholesterol]]), [[wax]]es (such as [[beeswax]]), and free fatty acids, which are usually present in human diet in smaller amounts.
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