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Studies on chemical and technological aspects of Ajowan (Trachyspermum ammi (L.) Syn. Carum copticum Hiern) seeds

N. B. Shankaracharya, S. Nagalakshmi, J. Pura Naik, Li Rao

Open publisher page 69 citations

Abstract

Composition of ajowan (Trachyspermum ammi (L.) Syn. Carum copticum Hiern) seeds and physicochemical characteristics of essential oils from this spice were determined. GC-MS analysis of oil extracts showed the presence of 17 constituents, of which thymol (39.36%), gamma-terpinene (30.97%), p-cymene (19.47%), beta-pinene (5.45%) and alpha-pinene (1.48%) were the major constituents. Yield of oleoresin was 24.66%; oleoresin was comprised of 12.15% volatile oil and 87.85% non-volatile material. Oleoresin samples kept in cool conditions (8-10C) and at ambient temp. (25-30C) for 60 days did not show any significant changes in quality.

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What this paper is about

Composition of ajowan (Trachyspermum ammi (L.) Syn. Carum copticum Hiern) seeds and physicochemical characteristics of essential oils from this spice were determined. GC-MS analysis of oil extracts showed the presence of 17 constituents, of which thymol (39.36%), gamma-terpinene (30.97%), p-cymene (19.47%), beta-pinene (5.45%) and alpha-pinene (1.48%) were the major constituents. Yield of oleoresin was 24.66%; oleoresin was comprised of 12.15% volatile oil and 87.85% non-volatile material. Oleoresin samples kept in cool conditions (8-10C) and at ambient temp. (25-30C) for 60 days did not show any significant changes in quality.

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Available abstract

Composition of ajowan (Trachyspermum ammi (L.) Syn. Carum copticum Hiern) seeds and physicochemical characteristics of essential oils from this spice were determined. GC-MS analysis of oil extracts showed the presence of 17 constituents, of which thymol (39.36%), gamma-terpinene (30.97%), p-cymene (19.47%), beta-pinene (5.45%) and alpha-pinene (1.48%) were the major constituents. Yield of oleoresin was 24.66%; oleoresin was comprised of 12.15% volatile oil and 87.85% non-volatile material. Oleoresin samples kept in cool conditions (8-10C) and at ambient temp. (25-30C) for 60 days did not show any significant changes in quality.

Key concepts: Oleoresin, Thymol, Essential oil, Pinene, Chemical constituents, Chemistry, alpha-Pinene, p-Cymene

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