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psidium_guajava_l [2021/01/11 16:33] andreaspsidium_guajava_l [2021/10/14 10:28] (aktuell) andreas
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 Evergreen shrub or small tree native to the Caribbean, Central America and South America, widely cultivated for the fruit in tropical and subtropical regions around the world. "Various cultivars have white, pink, or red flesh, and a few also feature red (instead of green) skin." \\ Evergreen shrub or small tree native to the Caribbean, Central America and South America, widely cultivated for the fruit in tropical and subtropical regions around the world. "Various cultivars have white, pink, or red flesh, and a few also feature red (instead of green) skin." \\
 [[http://en.wikipedia.org/wiki/Psidium_guajava]] [[http://en.wikipedia.org/wiki/Psidium_guajava]]
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 +„A study of the key sulfur odor components of guava was undertaken by headspace and solvent extraction techniques. GC and GC/MS analysis identified five sulfur components; dimethyl disulfide, dimethyl trisulfide, benzothiazole, 3-mercaptohexanol and 3-mercaptohexyl acetate. Two of these compounds have not previously been reported as occurring in guava (3-mercaptohexanol and 3-mercaptohexyl acetate). These compounds have a cassis-like odor and are thought to make an important contribution to the odor of guava.“ \\
 +[Clery, Robin A., and Christopher J. Hammond. "New sulfur components of pink guava fruit (Psidium guajava L.)." Journal of Essential Oil Research 20.4 (2008): 315-317]
  
 The most important (FD factors) aroma compounds present in fresh, pink-fleshed Colombian guavas (Psidium guajava, L.), variety regional rojo, were 4-methoxy-2,5-dimethyl-3(2H)-furanone, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, 3-sulfanylhexyl acetate, and 3-sulfanyl-1-hexanol followed by 3-hydroxy-4,5-dimethyl-2(5H)-furanone, (Z)-3-hexenal, trans-4,5-epoxy-(E)-2-decenal, cinnamyl alcohol, ethyl butanoate, hexanal, methional, and cinnamyl acetate. Enantioselective GC revealed an enantiomeric distribution close to the racemate in 3-sulfanylhexyl acetate as well as in 3-sulfanyl-1-hexanol. \\ The most important (FD factors) aroma compounds present in fresh, pink-fleshed Colombian guavas (Psidium guajava, L.), variety regional rojo, were 4-methoxy-2,5-dimethyl-3(2H)-furanone, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, 3-sulfanylhexyl acetate, and 3-sulfanyl-1-hexanol followed by 3-hydroxy-4,5-dimethyl-2(5H)-furanone, (Z)-3-hexenal, trans-4,5-epoxy-(E)-2-decenal, cinnamyl alcohol, ethyl butanoate, hexanal, methional, and cinnamyl acetate. Enantioselective GC revealed an enantiomeric distribution close to the racemate in 3-sulfanylhexyl acetate as well as in 3-sulfanyl-1-hexanol. \\
psidium_guajava_l.1610382828.txt.gz · Zuletzt geändert: 2021/01/11 16:33 von andreas

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