An analysis of volatile compounds in selected legumes in the Philippines using HS SPME-GCMS

Date of Publication

2016

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Chemistry

Subject Categories

Chemistry

College

College of Science

Department/Unit

Chemistry

Thesis Adviser

Regina Salmasan

Defense Panel Chair

Glenn V. Alea

Defense Panel Member

Joan Candice Ondevilla
Maria Carmen S. Tan

Abstract/Summary

Legumes have been grown since ancient times and are still considered a common staple worldwide. In the Philippines, the most common types of legumes consumed are vigna radiata (VR), phaseolus vulgaris (PV) , cicer arietinum (CA) and tamarindus indica (TI). VR sprouts are also largely consumed as an alternative source of protein. This study provided an initial volatile profile of legumes commonly consumed in the Philippines using headspace-solid phase micro extraction (HS-SPME) coupled with gas chromatography-electron ionization-mass spectroscopy (GC-EI-MS). Changes in the volatile profile of VR during germination to produce the sprouts have also been monitored.

The most abundant types of compounds identified during analysis were found to be aldehydes such as pentadecanal and alkanes such as hexadecane for ungerminated mung beans. Germinated VR were found to be abundant in aldehydes like hexanal and alcohols such as 1-hexanol, most likely due to oxidation during the germination process. In PV, the most abundant types were ketones like turmerone and benzophenone and aromatic compounds like arturmerone and thalicarpine. CA was also found to be abundant in ketones like turmerone and benzophenone, aromatic compounds such as ar-tumerone and biphenyl, and alkanes such as hexadecane and 2-cyclohexyl-2-phenyl-propane. It was found to be abundant in carboxylic acids such as tricosanoic acid and oleic acid, and in ketones such as benzophenone and trans-8-ionone.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU19914

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

viii, 129 leaves, illustrations (some color), 28 cm + 1 computer disc (4 3/4 in.)

Keywords

Legumes--Philippines; Volatile organic compounds--Philippines; Organic compounds--Philippines

Embargo Period

5-10-2021

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