（脂肪酸分解代謝ZhangSchoolofLifeSciences&: :1Mobilizationoffats（TG）fromdietaryintakeandadiposetissuesfattyacidsKetone FAmetabolismregulationand23expendingabout25,000kJ/day(6,0003Lipids：insolubilityorlowersolubilityinHighlysolubleinnon-polar(非極性Theirwater-insolubilitycontributestomuchofthecomplexityintheirdigestion,transport,andmetabolism.* *polar,moreamphipathiclipidslipidCategories（Chemical--glyceride(甘油酯)wax（蠟5Biological--highmelting--energy--water-impermeable(不透水)棕櫚 三十烷Triacontanyl-palmitateisthemajorcomponentofbeeswax. Naturaloilsmainlycontaintriacyl-glycerolswithunsaturatedfattyacids--liquidsatroomSolidfatscontainprimarilysaturatedfatty7--highmelting7--solidatroomCellMetab.2015Oct6;22(4):658-IntroductiontofattyacidsFatty yimportantBuildingblocksforphospholipids(磷脂&TargetproteinstoHighenergysourceofHormonesor9TwosourcesofFA:storedanddietaryFAsrepresenttheprincipalformofstoredenergyin)Thecarboninfattyacids(-CH2)iscomple yreduced-moreenergyFattyacidsarenothydrated,socanpackmorecloselyinstoragetissuesfattyacidpalmitic（16：0）、Palmitoleic（棕櫚油酸)（16：1△9）、oleic（18：1△9Linoleic(亞油酸）（18：2△9，12）、α-linolenic（α-亞麻酸）（18：3△9，12，15）、γ-liolenic（γ-亞麻酸）（18：，14）EPA(20碳五烯酸）(20：5△5，8，11，14，17）DHA（22碳六烯酸）SaturatedVs.UnsaturatedPolarheadSaturatedFatty

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