Reference

Oviposition stimulants of a Citrus-feeding swallowtail butterfly, Papilio xuthus L

Oviposition stimulants of a Citrus-feeding swallowtail butterfly, Papilio xuthus L. Nishida, R.; Ohsugi, T.; Kokubo, S.; Fukami, H. (Fac. Agric., Kyoto Univ., Kyoto 606, Japan). Experientia, 43(3), 342-4 (English) 1987. 23666-13-9 and 58-61-7 which are cas registry numbers are also used here. CODEN: EXPEAM. ISSN: 0014-4754. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) Section cross-reference(s): 11, 12 A methanolic ext. of C. unshiu induces oviposition by females of a Citrus-feeding swallowtail butterfly, P. xuthus. The chem. factors responsible for stimulating oviposition were isolated and characterized as 5-hydroxy-Nw-methyl-tryptamine [1134-01-6], adenosine [58-61-7], vicenin-2 [23666-13-9], narirutin [14259-46-2], hesperidin [520-26-3] and rutin [153-18-4]. An artificial blend of these 6 components elicited significant oviposition behavior, apparently identical to that induced by contact with intact Citrus leaves. .

Changes in naringin content of natsumikan fruit (Citrus natsudaidai, cv

Changes in naringin content of natsumikan fruit (Citrus natsudaidai, cv. Kawano-natsudaidai) after freezing. Matsumoto, Ryoji; Okudai, Naomi; Maotani, Toru (Fruit Tree Res. Stn., Minist. Agric., For., Fish., Kuchinotsu 859-25, Japan). Engei Gakkai Zasshi, 52(1), 1-6 (Japanese) 1983. CODEN: EGKZA9. ISSN: 0013-7626. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) Content of naringin (I) [10236-47-2], the principal bitter compd. in the juice of natsumikan fruits injured by freezing, was detd. by high performance liq. chromatog. on a Zorbax ODS column, elution with H2O-MeCN, and absorbance at 280 nm. The flavanone glycosides found in natsumikan juice from fruit harvested on Dec. 23 were narirutin [14259-46-2], I, and neohesperidin [13241-33-3]. Prunin and/or naringenin produced from I by naringinase were not detected. In fruits on the tree, the content of I in the juice increased gradually from 14 on Dec. 10236-47-2 and 13241-33-3 are also in the experiment. 23 to 32 on Jan. 30 after freezing below -4.6° on Dec. 28-30 and Jan. 11, and decreased to 25 mg/100 mL on Feb. 19. In the detached fruits stored at 5° and cooled to -6.5° for 11 h, the content of I increased to ~30 mg/100 mL and remained high thereafter. The content of I per fruit, in the attached fruits, decreased from 60 to 45 mg with the advance of granulation caused by freezing. But in the detached fruits stored at 5° with freezing , the content of I per fruit was ~60 mg, and granulation proceeded more slowly and less severely than the fruits on the tree. .