Chemical composition, fatty acid profile and bioactive compounds of guava seeds (Psidium guajava L.)

Spectroscopic and chromatographic evaluation of solvent extracted guava seed oil

“…Total oil content of Psidium Guajava seeds was found to be 11.12 g of oil /100 g of seed on dry bases. The oil content found in present study is higher than Habib [23] 9.1 g of oil /100 g of seed and Opute [24] 9.4 g of oil/100 g of seed, whereas slightly lower than Uchôa-thomaz et al [12] 13.93 g of oil/100 g of seed [12]. To check the quality of guava seed oil, iodine value (IV), acid value (AV), free fatty acids value (FFA), peroxide values (PV) and saponification value (SV) were calculated as shown in Table 1.…”

“…The GC-MS results of guava seed oil provided number of fatty acids that turned out to be different from previously published data. [12] The results revealed that a total of 18 fatty acids methyl esters were separated and quantified based on their elution order as shown in Fig. 2.…”

“…Previous study, on guava seed oil, revealed the identification of lauric acid, myristic acid, palmitic acid, heptadecanoic acid, stearic acid, oleic acid (n-9), linoleic acid (n-6), arachidic acid, gondoic acid, linoleic acid and behenic acid. [12] Habib [23] reported that high levels of unsaturated fatty acids (86.9%) mainly linoleic acid (79.1%) and oleic acid (7.8%) were identified by Opute. [24] In present study, on guava seed oil showed some new fatty acids which has been identified first time in guava seed oil such as palmitoleic acid, nonadecanoic acid, methyl ricinoleate, 10,13-eicosadienoic acid, 11-eicosenoic acid, heneicosanoic acid, tricosanoic acid, lignoceric acid and cerotic acid in minor concentration.…”

“…[10,11] Various chemical constituents of guava fruit have been identified such as phenolic compounds (tannins and phenols), carotenoids, triterpenes, fatty acids, flavonoids, saponins, vitamins, essential oils and lectins. [12] Guava seed extract has been reported as corrosion inhibitor (decreases corrosion rate of a material) for carbon steel in HCl (acidic) medium. [13] It has been reported that guava seed posses significant amount of tryptophan, methionine, linoleic acid and fiber content confines its use as wheat flour alternate in the preparation of cookies.…”

Agronomical, Anatomical and Physical Characterisation of Wood Apple (<i>Limonia acidissima</i>) Fruit and Seed

“…The pulp and seed accounting for 4% to 12% of the total mass of the fruit was obtained from the processing of guava fruit pulp 25 . According to the juicer method of extraction, the wood apple pulp also revealed similar percentage of seed compared to mango fruit and higher percentage of seed compared to guava fruit.…”