Table V.
Peak No. | Putative Metabolite | Compound Group | Up/Downa |
---|---|---|---|
1 | Glycerol-3-P | Sugar phosphate | Down |
2 | myo-Inositol-1-Pb | Sugar phosphate | Down |
3 | Glycerolb | Sugar alcohol | No change |
4 | myo-Inositolb | Sugar alcohol | Down |
5 | Arab | Sugar | Up |
6 | Xylb | Sugar | Up |
7 | Ribb | Sugar | Up |
8 | Trehaloseb | Sugar | Up |
9 | Galactopyranoside, methyl | Sugar | – |
10 | Galactinolb | Sugar | No change |
11 | Raffinoseb | Sugar | – |
12 | Threonic acid-1,4-lactone | Organic acid | – |
13 | N-Acetyl-Glub | Amino acid | – |
14 | Dehydroascorbic acid, dimerc | Organic acid | Up |
15 | 2-Keto-gluconic acid | Organic acid | – |
16 | Succinic acidb | Organic acid | Down |
17 | Quinic acidb | Organic acid | Down |
18 | GlcA | Organic acid | – |
19 | Galactonic acid | Organic acid | – |
20 | Gluconic acidb | Organic acid | Down |
21 | GalAb | Organic acid | Up |
22 | Putrescineb | Amine | Up |
23 | Serotoninb | Amine | – |
24 | Naringenin chalconeb | Flavonoid | – |
Changes in metabolite levels during fruit development as detected by GC-MS analysis of derivatized extracts performed by Carrari et al. (2006). Flesh and peel tissues were not separated in this study. –, Metabolites not reported in the Carrari et al. (2006) study.
Compounds were identified on the basis of comparison of their mass spectra and retention indexes with those of authentic standards; other metabolites were putatively identified by the comparison of their retention indexes and mass spectra with those available in spectral databases (see “Materials and Methods”).
Might have been generated from ascorbic acid in the presence of air.