Reference

The volatiles of cocoa by GC/MS analysis and sensory evaluation with special emphasis on the effect of fermentation and maturation

The volatiles of cocoa by GC/MS analysis and sensory evaluation with special emphasis on the effect of fermentation and maturation. Abeygunasekera, D. D.; Mubarak, A. M.; Jansz, E. R. (Ceylon Inst. Sci. Ind. Res., Bauddhaloka, Colombia). J.Several reagents with their cas registry numbers 120-72-9 and 101-97-3 are used here. Natl. Sci. Counc. Sri Lanka, 17(2), 229-35 (English) 1989. CODEN: JNSCBH. ISSN: 0300-9254. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) The effect of fermn. time and the maturation process on the volatiles of cocoa (Theobroma cacao) grown in Sri Lanka is reported. Approx. 35-75% of the volatiles (depending on sample) were identified by GC/MS. Both fermn. time and the maturation process increase the level of volatiles of 4 day fermented cocoa but the resulting flavor profile is different. That flavor score was linearly related to fermn. time and flavor improved significantly with time. The sensory evaluation panel also found that mutation improved flavor and chocolate from Grade III beans had a better flavor than that from Grade I beans. .

A method for the synthesis of unsaturated carbonyl compounds

A method for the synthesis of unsaturated carbonyl compounds. Ksander, Gary M.; McMurry, John E.; Johnson, Mark (Thimann Lab., Univ. California, Santa Cruz, Calif.Chemicals with cas numbers 101-97-3 and 29800-43-9 also play role., USA). J. Org. Chem., 42(7), 1180-5 (English) 1977. CODEN: JOCEAH. DOCUMENT TYPE: Journal CA Section: 23 (Aliphatic Compounds) Section cross-reference(s): 24 Aliph. esters and lactones were .alpha.-acylated by EtO2CCO2Et and the products treated with aldehydes (e.g., HCHO and MeCHO) to yield the resp. .alpha.-methylene and .alpha.-ethylidene esters and lactones. Thus, Me2CO was converted to MeCOCH2COCO2Et which was treated with HCHO and Br to yield MeCOC(:CH2)Br. Similarly, cyclohexanone was converted to 2-ethylidenecyclohexanone by the use of MeCHO. .