专利号:US-10533205-B1 优先权日:2013-10-09 标 题:Kaurenoic acid glycoside precursors and methods of synthesis 发明人:ZIPP BRANDON 权利人:VITALITY BIOPHARMA INC 摘要:Ent-kaurenoic acid glycoside precursor compositions and synthesis methods are provided. The KA-19-monoside, KA-19-bioside and KA-19-trioside precursors can be used as starting materials for a variety of kaurenoic acid based reactions. The precursors provide alternative synthesis pathways for steviol glycosides to the natural pathway based on Steviol biosynthesis. The alternative synthesis pathways using the precursors also circumvent the rate limiting step of the natural Steviol biosynthesis pathway. The precursors can be used individually or in combination to produce a mixture or individual steviol glycosides such as Rebaudioside A, Rebaudioside D or Rebaudioside M. Control over the precursor quantities and composition allows control over the composition of the resulting steviol glycosides that are finally produced.
专利号:US-12071646-B2 优先权日:2014-09-11 标 题 :Cells comprising mogroside pathway enzymes and uses thereof 发明人:ITKIN MAXIM; DAVIDOVICH-RIKANATI RACHEL; COHEN SHAHAR; PORTNOY VITALY; DORON-FAIGENBOIM ADI; PETREIKOV MARINA; SHEN SHMUEL; TADMOR YAAKOV; BURGER YOSEF; LEWINSOHN EFRAIM; KATZIR NURIT; SCHAFFER ARTHUR A; OREN ELAD 权利人:THE STATE OF ISRAEL MINISTRY OF AGRICULTURE & RURAL DEVELOPMENT AGRICULTURAL RES ORGANIZATION ARO VO 摘要:Isolated mogroside and mogrol biosynthetic pathway enzyme polypeptides useful in mogroside biosynthesis are provided. Mogroside biosynthetic pathway enzymes of the invention include squalene epoxidase (SE), epoxy hydratase (EH), cytochrome p450 (Cyp), cucurbitadienol synthase (CDS) and udp-glucosyl-transferase (UGT), Also provided are methods of producing a mogroside using the isolated mogroside and mogrol biosynthetic enzyme polypeptides, the methods comprising contacting a mogrol and/or a glycosylated mogrol (mogroside) with at least one UDP glucose glucosyl transferase (UGT) enzyme polypeptide of the invention catalyzing glucosylation of the mogrol and/or the glucosylated mogrol to produce a mogroside with an additional glucosyl moietie(s), thereby producing the mogroside. Alternatively or additionally provided is a method of synthesizing a mogrol, the method comprising contacting a mogrol precursor substrate with one or more mogrol biosynthetic pathway enzyme polypeptides as described herein catalyzing mogrol synthesis from the mogrol precursor substrate, thereby synthesizing the mogrol.
专利号:BR-112017006139-B1 优先权日:2014-10-03 标题 :Method for the synthesis of rebaudioside m or rebaudioside m and rebaudioside m
专利号:CN-114507649-A 优先权日:2022-02-16 标 题 :Thermophilic enzymes and a one-pot method for the efficient synthesis of UDP-glucose and UDP-glucuronic acid
专利号:KR-102050863-B1 优先权日:2017-06-29 标 题 :Synthesis method of rubusoside-fructoside using levansucrase
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合成参考文献
参考文献:10.1080/00021369.1991.10870576|10.1271/bbb1961.55.449 摘要:Ohtani K, Aikawa Y, Ishikawa H, Kasai R, Kitahata S, Mizutani K, Doi S, Nakaura M, Tanaka O. Further Study on the 1,4-α-Transglucosylation of Rubusoside, a Sweet Steviol-Bisglucoside fromRubus suavissimus. Agricultural and Biological Chemistry. 1991 Feb;55(2):449–53. doi: 10.1080/00021369.1991.10870576. 摘要:https://pubs.acs.org/doi/abs/10.1021/acs.analchem.7b00741