TWI492755B - 抗糖尿病及抗新陳代謝疾病之香椿超臨界萃取物、製備方法及用途 - Google Patents
抗糖尿病及抗新陳代謝疾病之香椿超臨界萃取物、製備方法及用途 Download PDFInfo
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- TWI492755B TWI492755B TW098145982A TW98145982A TWI492755B TW I492755 B TWI492755 B TW I492755B TW 098145982 A TW098145982 A TW 098145982A TW 98145982 A TW98145982 A TW 98145982A TW I492755 B TWI492755 B TW I492755B
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Description
本案係關於一種香椿萃取物,尤其係關於一種香椿超臨界萃取物、製備方法及用途,該香椿超臨界萃取物能夠促進細胞內葡萄糖吸收、促進脂質分解、及抑制脂肪油滴形成過大,可用於開發針對新陳代謝症候群之預防用食品、飲料、或治療劑。
香椿(Toona sinensis
)為一種楝科(Meliaceae)落葉喬木,其葉片可供食用,具有消炎、解毒、殺蟲及治療腸炎、痢疾、疽、漆瘡、疥瘡、白禿及改善體質之要用功能。在民間療法中,香椿根皮可治白帶、去風濕、治腸胃疾病,葉水可洗癬疥,香椿還有防治感冒和腸炎的作用。
先前研究(Chen et al.,Cancer Lett.2009,286:161-171)曾指出由香椿葉中萃取出的沒食子酸(gallic acid)對前列腺癌具有活性氧化物(reactive oxygen species,ROS)調節的抗癌活性,其萃取方式是以水煮香椿葉、篩孔過濾、冷凍乾燥,以及多次的不同濃度乙醇及冷凍乾燥處理獲得不同的萃取物(Chang et al.,Gynecol.Oncol.2006,102:309-314;Wang et al.,Food Chem.Toxicol.2008,46:2554-2560)。此外,亦有文獻指出以水萃取香椿葉獲得萃取物,再經醇類沖提反相管柱的液相層析法獲得醇類沖提物,該醇類沖提物用以抑制癌細胞增生(US 2009/0169658 A1)。而某些食品廣告誇張宣稱以熱水沖泡香椿茶包即具有抗癌效果,然而熱水之溫度、蒸汽及壓力並不足以使香椿之成份溶濾於水中,成份劑量也未達有效的治療劑量及濃度。
水及各種有機溶劑具有不同的極性強度,萃取法即是利用化
合物相對於溶劑分配係數強弱不同而獲得目標萃取物。再者,以水煮或有機溶劑萃取將可能破壞或流失部分的萃取物,造成產量及產率降低,萃取物中殘留的有機溶劑亦可能對使用者造成毒性。因此,尋找無毒性、無殘留物、無產量/產率降低等優點的萃取方法成為香椿應用上的目標。
肥胖、糖尿病及其衍生的新陳代謝疾病為人類文明進步後受關注的議題,而肥胖為造成心臟血管疾病、胰島素抗阻性、糖尿病、癌症等疾病的主要原因。目前最有效的降血糖方式為皮下注射胰島素,然而需密集監測血糖及調整胰島素劑量,造成糖尿病患者生活上之不便。第二型糖尿病大多以口服降血糖藥物治療,其主要分為四大類:促胰島素分泌劑(磺醯尿素(sulfonylureas)、非磺醯類(Glinides))、雙脈類(Metformin)、胰島素增敏劑(如:噻唑烷二酮(Thiazolidinedione,TZD))及α-葡萄糖苷酶抑制劑。每一類的作用機轉及副作用都不盡相同,病患需嘗試多幾種藥物後才能找到適合及有效的藥物。
由於有些口服降血糖藥物會引起腹瀉等腸胃道副作用而引起病患的排斥,對於肝臟或腎臟功能障礙的病患也無法使用。而胰島素增敏劑類藥物中的羅格列酮(Rosiglitazone)更有增加心肌梗塞及婦女骨折的危險性。因此積極開發更有效、少副作用、價格低廉、可使用於肝臟或腎臟功能障礙病患的降血糖藥物仍有國際醫療市場之需求性。
雖然市面上已有多種天然植物萃取物宣稱能減肥或降低血糖,然而卻缺少科學證據,無法為臨床醫師及國際市場認同。因此,克服前述習知萃取方法的缺點,並有效製備出抗糖尿病及新陳代謝疾病的萃取物即成為本發明的目標。
本案申請人鑑於習知技術中的不足,經過悉心試驗與研究,
並一本鍥而不捨之精神,終構思出本案「抗糖尿病及抗新陳代謝疾病之香椿超臨界萃取物、製備方法及用途」,能有效促進細胞內葡萄糖吸收、促進脂質分解、抑制脂肪油滴形成過大及改善新陳代謝的症狀,且能夠克服先前技術的不足,以下為本案之簡要說明。
為了克服先前技術中萃取方法的缺失,以及製備抗糖尿病及新陳代謝疾病之萃取物,本發明應用超臨界流體技術萃取香椿葉片,獲得香椿超臨界萃取物,該香椿超臨界萃取物可有效促進細胞內葡萄糖吸收、促進脂質分解、抑制脂肪油滴形成過大及改善新陳代謝的症狀,可作為降血糖藥物及飲食品。
本發明採用的超臨界流體為二氧化碳,二氧化碳在31.7℃、72.8大氣壓時達到氣相及液相的臨界點,然而在超過臨界溫度、臨界壓力、臨界密度的狀態下會呈現超臨界流體所具備的高溶解度及高滲透度特性(Wang et al.,Chem.Eur.J.2009,15:4458-4463)。由於二氧化碳在常溫下可萃取出物質而不會與萃取的物質產生化學反應,使物質在萃取後仍保持活性。再者,二氧化碳在萃取後調整至常溫常壓即可揮發,可達到快速濃縮物質之效且無溶劑殘留的問題。因此,超臨界流體具備蒸餾及有機溶劑萃取效果,藉由超流界流體的高擴散係數、低黏度、低表面張力,以密度的改變調整欲萃取之物質的溶解度,達到分離效果。除了超臨界二氧化碳流體,其他超臨界流體也可被應用於本發明。
本發明的第一目的為提出一種製備用以降血糖的香椿萃取物的方法,該方法包括下列步驟:(a)乾燥一香椿的一葉片;(b)粉碎該葉片為顆粒;以及(c)以一超臨界二氧化碳萃取該顆粒,獲得該
香椿萃取物。而該葉片係選自由一嫩葉、一成熟葉及一芽葉所組成的群組其中之一。
本發明的第二目的為提出一種用於降血糖的香椿萃取物,其中該香椿萃取物包括倍半萜類化合物以及長鏈碳烷類化合物。倍半萜類化合物還包括異蘭烯、香橙烯、β-丁香烯、馬兜鈴烯、γ-廣藿香烯、α-丁香烯、香葉草烯D、β-芹子烯、γ-芹子烯、γ-蘭香烯立體異構物、香葉草烯A、δ-蘭香烯及香葉草烯B。而長鏈碳烷類化合物還包含二十一烷、二十二烷、二十三烷、二十八烷、三十一烷、三十二烷、三十五烷、三十六烷、四十三烷及四十四烷。
根據上述構想,該香椿萃取物還用以改善新陳代謝症狀及抑制脂肪堆積於一動物體內,且該香椿萃取物進一步可被製作為飲食品及藥劑。
本發明的第三目的為提供一種製備用以降血糖的香椿萃取物的方法,該方法包括下列步驟:以一超臨界流體萃取一香椿的葉片顆粒,獲得該香椿萃取物。
根據上述構想,該超臨界流體包括超臨界二氧化碳,且該香椿萃取物更為香椿精油萃取物,而該葉片顆粒先經乾燥再加以粉碎。
由於過去未有任何文獻報導香椿的低極性物質具有降血糖以及抑制脂肪堆積的療效,而本發明以超臨界二氧化碳流體萃取得到的香椿超臨界萃取物卻具有改善新陳代謝的症狀,該香椿超臨界萃取物可克服先前技術的缺點,而具有產業利用性。
本案所提出之「抗糖尿病及抗新陳代謝疾病之香椿超臨界萃取物、製備方法及用途」將可由以下的實施例說明而得到充分瞭
解,使得熟習本技藝之人士可以據以完成之,然而本案之實施並非可由下列實施例而被限制其實施型態,熟習本技藝之人士仍可依據除既揭露之實施例的精神推演出其他實施例,該等實施例皆當屬於本發明之範圍。
請參閱第1圖,為本發明的香椿超臨界萃取物(簡稱香椿萃取物)之製備示意圖。首先,先以冷風乾燥新鮮的香椿葉部至含水率低於30%,再將乾燥後的香椿葉部以機械或物理方式粉碎為1至5mm之顆粒(微粒)。將粉碎後之香椿顆粒置於超臨界萃取槽4內,以超臨界二氧化碳流體進行固態萃取,其操作壓力介於350至550巴(bar)、溫度設定於40至60℃,萃取時間設定為60至120分鐘,最後在氣液分離槽5下方出口收集香椿萃取物。二氧化碳儲存槽1內的二氧化碳經過預冷器2後,再經過高壓液態泵3進入萃取槽4。經固態萃取後的香椿萃取物與超臨界二氧化碳流體進入氣液分離槽5中,由於壓力與溫度改變,超臨界二氧化碳流體改變其相態為氣態而降低香椿萃取物溶解度,使香椿萃取物與超臨界二氧化碳流體分離,而達到氣液分離目的。氣態的二氧化碳再經壓縮後引入二氧化碳儲存槽1中回收使用。
由上述超臨界萃取所得的香椿萃取物,在進行以下實驗前已經過去除水分的步驟。實驗1是以香椿葉部為原料,包含嫩葉、成熟葉及芽葉,均可做為製備香椿超臨界萃取物的原料。
新鮮香椿葉材料購自隸屬於行政院農委會台東農業改良場所輔導之台東區農會-東興香椿產銷班。本實驗是以2200ppm的香椿超臨界萃取物為分析對象,其餘條件如下。儀器:Thermo DSQ II
GC/MS(Dual-Stage Quadrupole Single Quadrupole Mass Gas Chromatography);管柱:Thermo TR-HT5(30m×0.25mm,i.d.,0.1μm);偵測器溫度:250℃;注射口溫度:100℃(恆溫分流模式);分流流速:50ml/min;分流比:50;層析質譜儀界面溫度:250℃;氣體流速:1.0ml/min;輸送氣體:氦氣;質譜分析:正電離子之電子游離化;電子撞擊能量:70eV;質量範圍:50至800原子質量單位(amu);烘箱溫度設定:85至118℃以20℃/min升溫,118℃維持10分鐘再以0.1℃/min升溫至121℃,121℃維持5分鐘再以20℃/min升溫至230℃,230℃維持10分鐘再以10℃/min升溫至300℃並維持5分鐘直至結束。
氣相層析質譜結果如第2圖(A)至(C)所示,其中第2圖(B)及(C)為第2圖(A)之同次實驗的局部放大圖。香椿萃取物的主成分為倍半萜類(Sesquiterpene)化合物(C15
H24
),包含異蘭烯(Copaene)、香橙烯(Aromadendrene)、β-丁香烯(β-Caryophyllene)、馬兜鈴烯(Aristolene)、γ-廣藿香烯(γ-Patchoulene)、α-丁香烯(α-Caryophyllene)、香葉草烯D(Germacrene D)、β-芹子烯(β-Selinene)、γ-芹子烯(γ-Selinene)、γ-蘭香烯立體異構物(γ-Elixene)、香葉草烯A(Germacrene A)、δ-蘭香烯(δ-Elemene)、香葉草烯B(Germacrene B)。
除了倍半萜類化合物外,香椿萃取物還含有長鏈碳烷類化合物(Cn
H2n+2
),包含二十一烷(Heneicosane,C21
H44
)、二十二烷(Docosane,C22
H46
)、二十三烷(Tricosane,C23
H48
)、二十八烷(Octacosane,C28
H58
)、三十一烷(Hentriacontane,C31
H64
)、三十二烷(Dotriacontane,C32
H66
)、三十五烷(Pentatricontane,C35
H72
)、三十六烷(Hexatricontane,C36
H74
)、四十三烷(Tritetracontane,C43
H88
)、四十四烷(Tetratetracontane,C44
H90
)。
以上化合物的結構乃藉由其質譜斷裂片與美國國家標準與技術研究院(National Institute of Standards and Technology,NIST)之化工研究室(Chemical Science and Technology Laboratory,CSTL)網站及Nist MS search 2.0 version、Wiley Registry of Mass Spectral Data 8th edition等質譜資料庫交叉比對而得。前述成份的氣相層析質譜分析的延遲時間及其含量百分比如表1所示,而倍半萜類化合物的化學結構式如後所示。
前驅脂肪細胞誘發為成熟脂肪細胞後第4天在細胞培養液中加入10mM葡萄糖及100μg/ml濃度之香椿萃取物(溶解於100%酒精中),24小時後測量細胞培養液中的剩餘葡萄糖濃度,結果如第3
圖所示。在第3圖中,在換算為葡萄糖利用率後比較發現香椿萃取物具有降低細胞培養液中的葡萄糖濃度之能力,亦即促進脂肪細胞內葡萄糖吸收的效果。實驗中以胰島素(Insulin;10-7
M)及羅格列酮(100μg/ml)為正控制組。
誘發脂肪細胞成熟第2天開始在細胞培養液中加入10mM葡萄糖及100μg/ml之香椿萃取物(溶解於DMSO中),之後每天更換細胞培養液及香椿萃取物,第6天以油紅(Oil-Red)脂溶性染劑對細胞內油滴染色,其結果如第4圖所示,其顯示香椿萃取物具有抑制脂肪細胞內脂肪油滴過度形成的效果。
誘發脂肪細胞成熟第2天開始在細胞培養液中加入10mM葡萄糖及100μg/ml之香椿超臨界萃取物(溶解於DMSO中),之後每天更換細胞培養液及香椿超臨界萃取物,於第6天純化細胞內核糖核酸(RNA)或蛋白質,分析脂肪細胞內脂肪油滴晚期油滴表面蛋白Perilipin A基因及蛋白質的表現。其結果如第5圖(A)及(B)所示。在此,perilipin又稱油滴相關蛋白或油滴表面蛋白,作為油滴儲存的調節器,在人類則是由PLIN
基因轉譯獲得。在過去的研究中,與野生型小鼠相較,perilipin缺乏的小鼠僅獲得1/3脂肪量、體型較瘦且具有更多瘦肉、並能夠維持正常的葡萄糖耐受性(glucose tolerance)(Saha et al.,J.Biol.Chem.2004,279:35150-35158)。在第5圖(A)中,與DMSO對照組或是未經處理的脂肪細胞組相較,經香椿萃取物處理的脂肪細胞內perilipin A的mRNA含量顯著偏低,表示香椿萃取物抑制脂肪細胞內perilipin A基因過度表現(每一組n=
4;a,p
<0.001;N.S.,不具顯著性)。第5圖(B)則顯示香椿萃取物抑制脂肪細胞內perilipin A蛋白過度表現。綜合第5圖(A)及(B),香椿萃取物可藉由抑制perilipin A之表現來抑制脂肪細胞內脂肪油滴過度形成。
由上述的實驗可確定香椿的葉部經超臨界萃取後可得具有降血糖以及抑制脂肪堆積的萃取物,且活性成分主要為低極性的萜類物質,即一般所謂的精油。為了與先前技術相較,本實驗進一步比較香椿葉部超臨界萃取物與過去文獻、一般民間及坊間流傳萃取方式之葉部萃取物的降血糖活性。共歸納成三組對照組。
對照組1係參考Yang等人的研究(Yang et al.,J.Med.Sci.2003,19:327-333),分別取一定量之香椿葉及香椿嫩葉,各別放於加熱迴流裝置,加入足以覆蓋藥材表面之溶液(50%的含水酒精),加熱迴流3小時,冷卻、過濾及濃縮乾燥得對照組1萃取物:香椿葉50%酒精萃取物以及香椿嫩葉50%酒精萃取物。
對照組2係參考Hsieh等人的研究(Hsieh et al.,J.Ethnopharmacol.2005,102:357-363),分別取一定量之香椿葉及嫩葉,以100℃的沸水浸泡3次(5g/50ml),每次30分鐘,冷卻、過濾及濃縮乾燥得對照組2萃取物:香椿葉水泡法萃取物以及香椿嫩葉水泡法萃取物。
對照組3係參考Chang等人的研究(Chang et al.,Gynecol.Oncol.2006,102:309-314),分別取一定量之香椿葉及嫩葉,加入逆滲透水(1kg/4L),加熱至100℃並持續30分鐘,除去葉子並冷卻2小時,冷卻、過濾及濃縮乾燥得對照組3萃取物:香椿葉水煮法萃取物以及香椿嫩葉水煮法萃取物。
將本發明中的香椿超臨界萃取物與對照組中的各萃取物進行促進細胞內葡萄糖吸收效果分析(同實驗3),前驅脂肪細胞誘發為成熟脂肪細胞後第4天加入10mM葡萄糖及100μg/ml濃度以不同方法製備之香椿萃取物(溶解於100%酒精或水中),24小時後測量細胞培養液中的葡萄糖濃度。在換算為葡萄糖利用率後比較各萃取法之香椿促進脂肪細胞葡萄糖吸收的效果。實驗中以胰島素(10-7
M)及羅格列酮(100μg/ml)作為正控制組。請參閱第6圖,相較於市面上香椿產品常用之水泡法、民間常用之水煮法、或以50%酒精萃取之方法,只有超臨界香椿萃取物顯著地降低細胞培養液中的葡萄糖濃度,亦即增加脂肪細胞內葡萄糖吸收的能力,並且與目前臨床上已在使用之降血糖藥物胰島素及羅格列酮具有相當之效果。
本實施例為利用另一批號的香椿葉部,以實施例一實驗1方法製備,所得的香椿葉部超臨界萃取物進行糖尿病小鼠的動物實驗。
將C57BL/6小鼠分為4組:(a)控制組,餵食正常飼料;(b)餵食高脂肪飼料(40% fat)2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素(Streptozotocin)誘發糖尿病;(c)餵食高脂肪飼料2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素誘發糖尿病,並於誘發後1天開始給予5mg/day之香椿超臨界萃取物管胃灌食;(d)餵食高脂肪飼料2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素誘發糖尿病,並於誘發後1天開始給予5μg/day之羅格列酮管胃灌食。羅格列酮為目前臨床上常用TZD類之降血糖藥物,在此作為抑制血糖上升療效之
對照組。結果請參閱第7圖,在觀察8週後發現香椿超臨界萃取物有明顯抑制血糖上升之效果,其效果與羅格列酮相當。
將C57BL/6小鼠分為4組:(a)控制組,餵食正常飼料;(b)餵食高脂肪飼料(40% fat)2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素誘發糖尿病;(c)餵食高脂肪飼料2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素誘發糖尿病,並於誘發後1天開始給予5mg/day之香椿超臨界萃取物管胃灌食;(d)餵食高脂肪飼料2週後給予低劑量(i.e.45mg/kg)之鏈佐菌素誘發糖尿病,並於誘發後1天開始給予5μg/day之羅格列酮管胃灌食。相同地,以TZD類降血糖藥物-羅格列酮作為抑制血糖上升療效之對照組。結果請參閱第8圖,在觀察8週後發現香椿超臨界萃取物具有明顯抑制三酸甘油脂上升之效果,其效果與羅格列酮相當。
因此,本發明的香椿超臨界萃取物可作為改善新陳代謝症狀及降血糖之藥物組合物。本發明實屬難能的創新發明,深具產業價值,援依法提出申請。此外,本發明可以由本領域技術人員做任何修改,但不脫離如所附申請專利範圍所要保護的範圍。
1‧‧‧二氧化碳儲存槽
2‧‧‧預冷器
3‧‧‧液態泵
4‧‧‧超臨界萃取槽
5‧‧‧氣液分離槽
第1圖為本發明的香椿超臨界萃取物之製備示意圖。
第2圖(A)至(C)為本發明的香椿萃取物之氣相層析質譜分析圖譜。
第3圖為本發明的香椿萃取物促進脂肪細胞吸收葡萄糖能力之示意圖。
第4圖為本發明的香椿萃取物抑制脂肪細胞內油滴過度形成
之示意圖。
第5圖(A)及(B)分別為本發明的香椿萃取物抑制脂肪細胞內脂肪油滴晚期油滴表面蛋白perilipin A之(A)基因表現及(B)蛋白表現示意圖。
第6圖為以不同萃取方法獲得之香椿萃取物促進脂肪細胞葡萄糖吸收之比較示意圖。
第7圖為本發明的香椿萃取物抑制高脂肪餵食之糖尿病小鼠血糖上升之示意圖。
第8圖為本發明的香椿萃取物抑制高脂肪餵食之糖尿病小鼠三酸甘油脂上升之示意圖。
1‧‧‧二氧化碳儲存槽
2‧‧‧預冷器
3‧‧‧液態泵
4‧‧‧超臨界萃取槽
5‧‧‧氣液分離槽
Claims (11)
- 一種製備用以降血糖的香椿萃取物的方法,該方法包括下列步驟:(a)乾燥一香椿的一葉片;(b)粉碎該葉片為顆粒;以及(c)以一超臨界二氧化碳萃取該顆粒,獲得該香椿萃取物,其中該葉片乾燥後之含水率低於30%,且步驟(c)之操作壓力介於350至550巴之間、溫度介於40至60℃之間、以及萃取時間介於60至120分鐘之間,其中該香椿萃取物包括倍半萜類化合物以及長鏈碳烷類化合物,該倍半萜類化合物包括異蘭烯(Copaene)、香橙烯(Aromadendrene)、β-丁香烯(β-Caryophyllene)、馬兜鈴烯(Aristolene)、γ-廣藿香烯(γ-Patchoulene)、α-丁香烯(α-Caryophyllene)、香葉草烯D(Germacrene D)、β-芹子烯(β-Selinene)、γ-芹子烯(γ-Selinene)、γ-蘭香烯立體異構物(γ-Elixene)、香葉草烯A(Germacrene A)、δ-蘭香烯(δ-Elemene)及香葉草烯B(Germacrene B),該長鏈碳烷類化合物包含二十一烷(Heneicosane)、二十二烷(Docosane)、二十三烷(Tricosane)、二十八八烷(Octacosane)、三十一烷(Hentriacontane)、三十二烷(Dotriacontane)、三十五烷(Pentatricontane)、三十六烷(Hexatricontane)、四十三烷(Tritetracontane)及四十四烷(Tetratetracontane)。
- 如申請專利範圍第1項所述的方法,其中該葉片係選自由一嫩葉、一成熟葉及一芽葉所組成的群組其中之一。
- 如申請專利範圍第1項所述之方法,其中該顆粒尺寸小於5釐米。
- 一種如申請專利範圍第1項所製備之用於降血糖的香椿萃取物,其中該香椿萃取物包括倍半萜類化合物以及長鏈碳烷類化合物。
- 如申請專利範圍第4項所述的香椿萃取物,其中該葉片乾燥顆粒來自該香椿的嫩葉、成熟葉、芽葉及其組合。
- 如申請專利範圍第4項所述的香椿萃取物,其中該香椿萃取物還 用以改善新陳代謝症狀及抑制脂肪堆積於一動物體內。
- 一種包含如申請專利範圍第4項所述的香椿萃取物的飲食品。
- 一種包含如申請專利範圍第4項所述的香椿萃取物的藥劑。
- 一種製備用以降血糖的香椿萃取物的方法,該方法包括下列步驟:以一超臨界流體萃取一香椿的葉片顆粒,獲得該香椿萃取物,其中該香椿的葉片顆粒乾燥後之含水率低於30%,且該方法之操作壓力介於350至550巴之間、溫度介於40至60℃之間、以及萃取時間介於60至120分鐘之間,其中該香椿萃取物包括倍半萜類化合物以及長鏈碳烷類化合物,該倍半萜類化合物包括異蘭烯(Copaene)、香橙烯(Aromadendrene)、β-丁香烯(β-Caryophyllene)、馬兜鈴烯(Aristolene)、γ-廣藿香烯(γ-Patchoulene)、α-丁香烯(α-Caryophyllene)、香葉草烯D(Germacrene D)、β-芹子烯(β-Selinene)、γ-芹子烯(γ-Selinene)、γ-蘭香烯立體異構物(γ-Elixene)、香葉草烯A(Germacrene A)、δ-蘭香烯(δ-Elemene)及香葉草烯B(Germacrene B),該長鏈碳烷類化合物包含二十一烷(Heneicosane)、二十二烷(Docosane)、二十三烷(Tricosane)、二十八烷(Octacosane)、三十一烷(Hentriacontane)、三十二烷(Dotriacontane)、三十五烷(Pentatricontane)、三十六烷(Hexatricontane)、四十三烷(Tritetracontane)及四十四烷(Tetratetracontane)。。
- 如申請專利範圍第9項的方法,其中該超臨界流體包括一超臨界二氧化碳,且該香椿萃取物還為一香椿精油萃取物。
- 如申請專利範圍第9項所述的方法,其中該葉片顆粒先經乾燥再加以粉碎。
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CN103301199B (zh) * | 2013-06-27 | 2015-08-19 | 广西大学 | 香椿嫩叶的综合利用方法 |
CN104133007B (zh) * | 2014-06-24 | 2015-09-16 | 中国林业科学研究院森林生态环境与保护研究所 | 森林可燃物中单萜类组分ɑ-蒎烯的提取、测量方法 |
CN105685115A (zh) * | 2016-03-09 | 2016-06-22 | 安徽源尔康医药生物科技有限公司 | 一种复方香椿消毒液 |
TWI699232B (zh) * | 2019-09-12 | 2020-07-21 | 新加坡商護農(新加坡)私人有限公司 | 製備廣藿香萃取物的方法 |
WO2021050000A1 (en) * | 2019-09-12 | 2021-03-18 | Crop Protection (Singapore) Pte. Ltd. | Method of preparing patchouli extract |
KR102342058B1 (ko) * | 2020-02-07 | 2021-12-22 | 대한민국 | 헤네이코산을 포함하는 당뇨 예방 또는 치료용 약학적 조성물 및 이를 포함하는 식품 조성물 |
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US5955636A (en) * | 1996-07-05 | 1999-09-21 | Kuraray Co., Ltd. | Process for producing 6-methyl-3-hepten-2-one and 6-methyl-2-heptanone analogues, and process for producing phyton or isophytol |
US20050175716A1 (en) * | 2004-02-09 | 2005-08-11 | Lee Yuan Y. | Method and herbal composition for treatment of diabetes |
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US20090169658A1 (en) * | 2007-12-28 | 2009-07-02 | Kaohsiung Medical University | Toona sinensis extract for suppressing proliferation and inducing apoptosis of osteosarcoma cells |
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TW201121559A (en) | 2011-07-01 |
EP2519244A4 (en) | 2015-05-13 |
US20110159127A1 (en) | 2011-06-30 |
US10668122B2 (en) | 2020-06-02 |
US20170252393A1 (en) | 2017-09-07 |
EP2519244A1 (en) | 2012-11-07 |
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