奇蹟食物「台灣香檬」（三）：最珍貴的營養在果皮上（科學研究報告整理）

許惠珺

更新於 2022/09/14發佈於 2020/02/11閱讀時間約 15 分鐘

台灣香檬，又稱扁實檸檬，台語有人叫它「酸桔仔」、「山柑仔」。日文叫シークヮーサー，意思是「酸到難以入口」。

今天台灣有農人給它冠上一個稱號，叫「希望的果實」。為什麼把台灣香檬叫做「希望的果實」？不研究還不知道，一研究才發現，台灣香檬竟然對人體健康大有益處，而其最珍貴的營養，就在果皮上！

台灣香檬的果皮，含有四種重要的營養成份：川陳皮素(Nobiletin)、橘皮素(Tangeretin)、辛弗林(Synephrine)、橙皮苷(Hesperidin)，又稱維生素P，其中以川陳皮素帶來的養生效果最為顯著。

台灣香檬不怕蟲害（只怕天牛），所以很容易種植，它的防衛機制就在它的果皮上，可以保護裡面的籽，也可以給人類食用帶來益處。

有關「川陳皮素」的研究，始於西元兩千年，以日本的研究居多，研究人員一直想找出日本沖繩島大宜味村村民如此長壽的祕訣。

根據動物研究和試管研究的結果，發現台灣香檬對於健康，可能有下列好處：

一、有助於抗癌[9,14]（攝護腺癌[1]、皮膚癌[8]、乳癌[21,22,23]、肝癌[4]、胃癌[5]、大腸癌[2,3,6]和血癌[24]）

川陳皮素似乎能夠啟動並加強身體的自我防衛機制，幫助身體對抗癌細胞。
吃越多，效果越好（效果和劑量有關）。

二、有助於抗發炎[9,10,13,14]

有助於對抗肝病[25]、骨關節炎[8]、類風溼性關節炎[8]、氣喘[11]、曬傷[12]。

三、有助於降三高：高血壓、高血糖、高血脂

有助於降低血膽固醇[18]

四、有助於減肥（減少脂肪）[27]、預防骨質疏鬆[26]

五、有助於預防糖尿病[28,29]

六、有助於對抗神經性發炎：能逆轉老年失智症[15,16,17]

七、有助於對抗過敏：能減輕癢[20]

八、有助於改善青春痘[19]

以上研究，都是針對香檬果皮中萃取出來的川陳皮素，所以一定要設法食用果皮，但整顆果實都食用最好，因為果實內富含微量元素和植化素。

相關閱讀：

以上資訊所參考的文獻如下：

1. Protective effects of citrus nobiletin and auraptene in transgenic rats developing adenocarcinoma of the prostate (TRAP) and human prostate carcinoma cells.
Cancer Science. 2007 April;98(4):471-7

2. Citrus nobiletin inhibits azoxymethane-induced large bowel carcinogenesis in rats.
Biofactors. 2004;22(1-4):111-4

3. Nobiletin, a citrus flavonoid, down-regulates matrix metalloproteinase-7 (matrilysin) expression in HT-29 human colorectal cancer cells.
Bioscience Biotechnology and Biochemistry. 2005 February;69(2):307-14

4. Inhibition of cell proliferation by nobiletin, a dietary phytochemical, associated with apoptosis and characteristic gene expression, but lack of effect on early rat hepatocarcinogenesis in vivo.
Cancer Science. 2004 Decemer;95(12):936-42

5. Anti-tumour effects of nobiletin, a citrus flavonoid, on gastric cancer include: antiproliferative effects, induction of apoptosis and cell cycle deregulation.
Alimentary Pharmacology & Therapeutics. 2004 Jul;20 Suppl 1:95-101

6. Dietary administration of citrus nobiletin inhibits azoxymethane-induced colonic aberrant crypt foci in rats.
Life Science. 2001 July 13;69(8):901-13

7. Inhibitory effect of citrus nobiletin on phorbol ester-induced skin inflammation, oxidative stress, and tumor promotion in mice
Cancer Research. 2000 September 15;60(18):5059-66

8. A citrus flavonoid, nobiletin, suppresses production and gene expression of matrix metalloproteinase 9/gelatinase B in rabbit synovial fibroblasts.
Journal of Rheumatoly. 2000 January;27(1):20-5

9. Anti-inflammatory property of the urinary metabolites of nobiletin in mouse.
Bioorganic & Medicinal Chemistry Letters .2007 September 15;17(18):5177-81

10. Nobiletin from citrus fruit peel inhibits the DNA-binding activity of NF-kappaB and ROS production in LPS-activated RAW 264.7 cells.
Journal of Ethnopharmacology. 2007 August15;113(1):149-55

11. Antagonistic effects of nobiletin, a polymethoxyflavonoid, on eosinophilic airway inflammation of asthmatic rats and relevant mechanisms.
Life Science. 2006 May 1;78(23):2689-96

12. Prevention of UVB-induced photoinflammation and photoaging by a polymethoxy flavonoid, nobiletin, in human keratinocytes in vivo and in vitro.
Biochemical Pharmacology. 2004 August 1;68(3):433-9.

13. Novel anti-inflammatory actions of nobiletin, a citrus polymethoxy flavonoid, on human synovial fibroblasts and mouse macrophages.
Biochemical Pharmacology. 2003 June 15;65(12):2065-71

14. In vitro absorption and metabolism of nobiletin, a chemopreventive polymethoxyflavonoid in citrus fruits.
Bioscience Biotechnology and Biochemistry. 2001 January;65(1):194-7

15. Nobiletin, a citrus flavonoid that improves memory impairment, rescues bulbectomy-induced cholinergic neurodegeneration in mice.
Journal of Pharmacological Sciences. 2007 September;105(1):122-6

16. Nobiletin, a citrus flavonoid, reverses learning impairment associated with N-methyl-D-aspartate receptor antagonism by activation of extracellular signal-regulated kinase signaling.
The Journal of Pharmacology and Experimental Therapeutics. 2007 May;321(2):784-90

17. Nobiletin restoring beta-amyloid-impaired CREB phosphorylation rescues memory deterioration in Alzheimer disease model rats.
Neuroscience Letters. 2006 June 12;400(3):230-4

18. Nobiletin, a citrus flavonoid isolated from tangerines, selectively inhibits class A scavenger receptor-mediated metabolism of acetylated LDL by mouse macrophages.
Atherosclerosis. 2005 January;178(1):25-32

19. A citrus polymethoxy flavonoid, nobiletin inhibits sebum production and sebocyte proliferation, and augments sebum excretion in hamsters.
Journal of Investigative Dermatology. 2007 December;127(12):2740-8.

20. Nobiletin, a polymethoxy flavonoid, exerts anti-allergic effect by suppressing activation of phosphoinositide 3-kinase.

Journal of Functional Foods. Volume 6, January 2014, Pages 606–614.

21. Antiproliferative and apoptosis-inducing activity of nobiletin against three subtypes of human breast cancer cell lines.

Anticancer Res. 2014 Apr;34(4):1785-92.

22. Tangeretin and nobiletin induce G1 cell cycle arrest but not apoptosis in human breast and colon cancer cells.

Cancer Lett. 2007 Jun 18;251(1):168-78. Epub 2007 Jan 2.

23. Nobiletin suppresses cell viability through AKT Pathways in PC-3 and DU-145 prostate cancer cells

BMC Pharmacol Toxicol. 2014; 15: 59.

24. Nobiletin suppresses the proliferation and induces apoptosis involving MAPKs and caspase-8/-9/-3 signals in human acute myeloid leukemia cells.

Tumour Biol. 2014 Dec;35(12):11903-11. doi: 10.1007/s13277-014-2457-0. Epub 2014 Aug 28.

25. The Citrus Flavonoids Hesperetin and Nobiletin Differentially Regulate Low Density Lipoprotein Receptor Gene Transcription in HepG2 Liver Cells

J Nutr. 2008 Jul; 138(7): 1274–1281.

26. Nobiletin Prevents Body Weight Gain and Bone Loss in Ovariectomized C57BL/6J Mice

Pharmacology & Pharmacy, Vol.5 No.10, September 2014

27. Regulation of adipocytokine secretion and adipocyte hypertrophy by polymethoxyflavonoids, nobiletin and tangeretin

Life Sci. 2011 March 28;88(13-14):613-8.

28. Nobiletin Attenuates VLDL Overproduction, Dyslipidemia, and Atherosclerosis in Mice With Diet-Induced Insulin Resistance

Diabetes. 2011 May; 60(5): 1446–1457.

29. Nobiletin improves hyperglycemia and insulin resistance in obese diabetic ob/ob mice

Biochem Pharmacol. 2010 Jun 1;79(11):1674-83.

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