Reference

Improvement of flavor and sweetness of stevioside

Improvement of flavor and sweetness of stevioside. Morita, Toyoshige; Morita, Etsuo; Fujita, Isamu (Morita Kagaku Kogyo Co., Ltd., Japan). Japan. Kokai JP 52057366 11 May 1977 Showa, 12 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: A23L001-22. APPLICATION: JP 75-132706 4 Nov 1975. DOCUMENT TYPE: Patent CA Section: 17 (Foods) Addn. of 20-550 parts glycoside X (I) [58543-16-1] to 100 parts stevioside [57817-89-7] intensified its sweetness and markedly improved flavor.

Rebaudiosides

Rebaudiosides. Tanaka, Osamu; Yamazaki, Kazuo; Sasai, Ryoji; Kanda, Hiroshi (Ajinomoto Co., Inc., Japan). Japan. Kokai JP 52083731 12 Jul 1977 Showa, 9 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C07C035-44. APPLICATION: JP 76-376 1 Jan 1976. DOCUMENT TYPE: Patent CA Section: 17 (Foods) Rebaudioside A (I) [58543-16-1] and rebaudioside B (II) [58543-17-2] were prepd. by extn. of Stevia leaves. Thus, 100 g leaves was defatted, extd. with MeOH for 1 h 3 times, and the MeOH ext. was extd. with aq. BuOH to give 7.1 g stevioside. The mother liquor was chromatographed on silica gel to give 2.04 g I, which (100 mg) was heated with 10% aq. KOH for 2 h at 90.degree. to give 26 mg II. I and II were 131- and 80-fold, resp., as sweet as sugar. IR spectra of I and II are presented.