Volatile constituents of Psidium Guajava l. (guava) fruits

Abstract

The chemical composition of the volatile oil of guava fruits from trees grown in Nigeria was investigated by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). A total of 25 compounds accounting for 80% of the oil were identified. Free fatty acids (mainly lauric and myristic acids) were the most abundant group of constituents (34 %). Large amounts of /?-caryophyllene and oxygen-containing sesquiterpenes (25 %) were also typical for Nigerian guava. Caryophylladienols are reported as guava volatiles for the first time.

Chemical composition of the leaf volatile oil of Psidium guajava L. growing in Nigeria

“…[3][4][5]9 This sesquiterpene hydrocarbon was also typical of the Nigerian guava fruit oil. 11 A noteworthy observation is the qualitative and quantitative similarities of the α-and β-selinene contents of Nigerian volatile oils from both fruits and leaves.…”

“…Several other studies describing the chemical composition of the volatile oil of the plant from different parts of the world, such as Cuba, 5 China, 6 Argentina, 7 Egypt, 8 Fiji 9 and The Philippines, 10 have been published. Although the composition of the fruit volatile oil of the plant collected from Nigeria has been previously reported, 11 this paper reports for the first time the chemical constituents of the volatile oil of the leaves of P. guajava L. growing in Nigeria.…”

The multiple nutrition properties of some exotic fruits: Biological activity and active metabolites

“…Free fatty acids (mainly lauric and myristic acids) were the most abundant group of constituents (34%). Large amounts of β-caryophyllene and O-containing sesquiterpenes (25%) also were typical for Nigerian guava (Ekundayo, Ajani, Seppanen-Laakso, & Laakso, 1991). A total of 88 volatiles were identified and detected.…”

Essential Oils from Neotropical Myrtaceae: Chemical Diversity and Biological Properties

“…The neotropical Myrtaceae comprises many species, which are used in traditional folk medicine for the treatment of several health problems not only in America but also in the Old World. American species were carried to Asia, Europe, and Africa by travellers, and became part of local folk medicine [136] [144]. Therefore, a complete review of neotropical Myrtaceae used in traditional medicine is out of scope of this article, and only some species are mentioned in order to give an overview of medicinal importance of American Myrtaceae ( Table 6).…”