Galloyl glucoses

O-Galloylglucose (/Tglucogallin) 1-O-Galloyl- glucose 1,6-0-Digalloyl- glucose 54... 

To investigate food preferences by insects and the compounds responsible for their choices, especially reduced consumption, these compounds can be added to their diet and tested in feeding bioassays. Here we will add a commercially available mixture of phenolic compounds (gallic acid and several galloyl glucoses), known as tannic acid, to the diet of homworm caterpillars. The tobacco homworm, Manduca sexta, normally feeds on Solanaceae such as tomato or potato plants. For more on the natural history of this insect, consult the information sheet prepared by the biological supply company that ships these caterpillars. 

Polyphenols Tannin Tannic acid Hanunamelitannin Commercially available mixture of hydrolyzable tannins usually rangmg from tri- to nona-galloyl glucose Commercially available extract of Hammamelis, a plant containing high concentrations of tannins... 

Zhang J, Li L, Kim SH, Hagerman AE, Lu J (2009) Anti-cancer, anti-diabetic and other pharmacologicand biological activities of penta-galloyl-glucose. Pharm res 26 2066-2080... 

Barbehenn, R.V, Jones, C.R, Hagerman, A.E., Karonen, M. Salminen, J.-R (2006). EUagitamiins have greater oxidative activities than condensed tannins and galloyl glucoses at high pH potential impact on caterpillars. Journal of Chemical Ecology, 32,2253-2267. 

Nishira H, Joslyn M A 1968 The galloyl glucose compounds in green carob pods (Ceratonia sili-qua). Phytochemistry 7 2147-2156... 

Nishira, H., and M. A. Joslyn The Galloyl Glucose Compounds in Green Carob Pods (Ceratonia Siliqua). Phytochemistry 7, 2147 (1968). 

Schmidt, O. Th., and H. Reuss 2-[-/ -Hydroxy-benzoyl]-glucose und 2-Galloyl-glucose. Liebigs Annalen 649, 137 (1961). 

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