棕櫚酸

Multi tool use
棕榈酸(Palmitic acid),又称软脂酸,IUPAC名十六(烷)酸,是一种饱和高级脂肪酸,以甘油脂的形式普遍存在于动植物油脂中,在自然界中分布很广。棕櫚油、棕榈仁油、牛油、乳酪、牛奶及肉類與多種植物油均有著這種脂肪酸,母乳中含量亦相當豐富[3]。
工业上由牛油、猪油等动物脂肪或棕榈仁油等植物油经皂化后制得;
棕櫚酸陰離子是棕櫚酸在生理酸鹼值中的觀察型態。
棕櫚酸是第一種從脂肪生成中產生的脂肪酸,亦可以由它產生更長的脂肪酸。棕櫚酸鹽對乙酰辅酶A羧化酶有負面反應,乙醘輔酶A羧化酶是在發展的醘鏈中負責將乙醘攜帶者蛋白轉為丙二醘攜帶者蛋白,因而可以阻止棕櫚酸鹽的生成。
棕櫚酸酯是一種抗氧化劑,及一種加入脫脂奶中的維生素A化合物,以取代因在脫脂的過程中失去的維生素。棕櫚酸酯會附於醇型態的維生素A,即視黃醇,以穩定在牛奶內的維生素A。
在第二次世界大戰中,棕櫚酸的衍生物曾被用作製造為凝固汽油彈。
棕櫚酸的還原會產生鲸蜡醇。
参考文献
^ Merck Index, 12th Edition, 7128.
^ Palmitic acid at Inchem.org
^ 棕櫚酸含量 影響寶寶消化吸收梁惠雯,聯合線
脂類(脂肪):以脂肪酸為主
|
|
饱和脂肪酸 (羧酸列表)
|
短链 |
蚁酸(C1) · 醋酸(C2) · 初油酸(C3) · 酪酸(C4) · 纈草酸(C5)
|
|
其他 |
己酸(C6) · 葡萄花酸(C7) · 辛酸(C8) · 壬酸(C9) · 癸酸(C10) · 十一酸(C11) · 月桂酸(C12) · 十三酸(C13) · 肉豆蔻酸(C14) · 十五酸(C15) · 棕櫚酸(C16) · 珠光脂酸(C17) · 硬脂酸(C18) · 十九酸(C19) · 花生酸(C20) · 二十一酸(C21) · 山嵛酸(C22) · 二十三酸(C23) · 木蠟酸(木焦油酸)(C24) · 二十五酸(C25) · 蠟酸(C26) · 二十七酸(C27) · 褐煤酸(C28) · 二十九酸(C29) · 蜂花酸(C30) · 三十一酸(C31) · 蟲漆蠟酸(C32) · 葉虱酸(C33) · 三十四酸(C34) · 三十五酸(C35) · 三十六酸(C36)
|
|
|
不飽和脂肪酸 |
ω−3多元不饱和 |
十六碳三烯酸(HTA)(16:3) · α-亚麻酸(ALA)(18:3) · 十八碳四烯酸(SDA)(18:4) · 二十碳三烯酸(ETE)(20:3) · 二十碳四烯酸(ETA)(20:4) · 二十碳五烯酸(EPA)(20:5) · 二十一碳五烯酸(HPA)(21:5) · 二十二碳五烯酸(DPA)(22:5) · 二十二碳六烯酸(DHA)(22:6) · 二十四碳五烯酸(Tetracosapentaenoic acid)(24:5) · 二十四碳六烯酸(Nisinic acid)(24:6)
|
|
ω−6多元不饱和 |
亚油酸(LA)(18:2) · 共轭亚油酸(CLA)(18:2) · γ-亚麻酸(GLA)(18:3) · 二十碳三烯酸(DGLA)(20:3) · 花生四烯酸(20:4) · 腎上腺酸(22:4) · 二十碳四烯酸(ETA)(20:4)
|
|
ω−7单元不饱和 |
棕榈油酸(16:1) · 异油酸(18:1) · 二十烯酸(20:1)
|
|
ω−9单元不饱和 |
油酸(18:1) · 反式油酸(trans-18:1) · 二十碳烯酸(20:1) · 芥酸(22:1) · 神经酸(鯊油酸)(24:1) · 11-二十碳烯酸(Gondoic acid)(20:1) · 二十碳三烯酸(Mead acid)(20:3)
|
|
|
反式脂肪酸 |
异油酸(18:1) · 反式油酸(trans-18:1)
|
|
生物分子構成:糖类(醇、醣蛋白、糖苷)、脂类(类花生酸、脂肪酸、磷脂、胆固醇与甾体中间产物、鞘脂)、核酸(碱基、核苷和核苷酸、核苷酸代谢中间产物)、蛋白质(氨基酸、氨基酸代谢中间产物)、四吡咯、血红素代谢中间产物
|
|
Y3qxHLmoZoHHtI,fIANqi7jXx Zwt9mVqgRhYP,sMP52E Y g,o,Bu3a,CmG tO637u56a9X8De9 SKZ7 xH
Popular posts from this blog
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
1
I have 4 tables namely stud, country_master_academic,master_state and master_city. The main problem is that my form consists of many different fields like textbox, radio buttons, dropdown and an image file, so i am getting really confused. I can't insert data in database. Please help me. I tried many times but its not working. Thanks for the help in advance. Modal in home.php page <div class="container"> <div class="modal fade" id="add_data_modal" role="dialog"> <div class="modal-dialog"> <div class="modal-content"> ...
6
$begingroup$
This is an entry in the Fortnightly Topic Challenge #41: Short and Sweet. 1 letter only could be mean anything . With an additional letter in front , could be used as medicine component and something you definitely learn or at least heard once. Add another letter in front , you would possibly hear that many times . Add an additional letter in front , you would found an independent country . With an additional letter, in the end , you would found something related to apple . Add another letter in the end , you would found something bad . Hint: Each letter is unique .
word knowledge letters chemistry
share | improve this question
...
0
I am trying to run a scheduled task with User Group (not a single user). This is working fine when I in the field "when running a task, use the following user account:" insert BUILTIN User Group (for example: Administrators or Users). But when I try it with the created Local User Group (example: TestGroup) it is not working. The Users in the TestGroup are the same as in the Administrators group. What could be the problem? Are there some restrictions to the Created User Group compared to BUILTINUsers?
scheduled-tasks taskscheduler windowstaskschedule
share | improve this question
asked Nov 15 '18 at 15:36
Far...