alexa Proximate Analysis of Garlic (Allium sativum) Paste Tre
ISSN: 2157-7110

Journal of Food Processing & Technology
Open Access

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Research Article

Proximate Analysis of Garlic (Allium sativum) Paste Treated with Ascorbic and Citric Acids

Mutasim ZA1* and Elgasim AE2
1Arab Center for Nutrition, Muharraq, Kingdom of Bahrain
2Faculty of food science and technology, Khartoum University, Sudan
Corresponding Author : Mutasim ZA
Arab Center for Nutrition
Muharraq, Kingdom of Bahrain
Tel: +973-33111595
Fax: +973-17346339
E-mail: [email protected]
Received December 08, 2015; Accepted January 02, 2016; Published January 08, 2016
Citation: Mutasim ZA, Elgasim AE (2016) Proximate Analysis of Garlic (Allium sativum) Paste Treated with Ascorbic and Citric Acids. J Food Process Technol 7:550. doi:10.4172/2157-7110.1000550
Copyright: © 2016 Mutasim ZA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

The prime objective of the study was to develop a preservation method for garlic paste that could prevent adverse quality changes, render the paste more shelf stable and possibly retain chemical characteristics of fresh garlic. Three separate batches of fresh garlic bulbs of two Sudanese varieties (Dongla and Berber) harvested in December 2011 were collected, peeled manually, separated into individual sound cloves, divided into 5 equal portions and crushed in a blender until a smooth puree was obtained. Before crushing, portions were assigned randomly to chemical treatments (T0 = no chemical additives (control); T1 = 0.5 mg/g Ascorbic acid; T2 = 2 mg/g Citric acid; T3 = 0.25 mg/g Ascorbic acid + 1 mg/g Citric acid and T4 = 0.5 mg/g Ascorbic acid + 2 mg/g Citric acid). The chemical additives (T0-T4) were added during bulb crushing. Each garlic treated portion was subdivided into 2 equal portions, packed in glass containers and hermetically closed, stored at 25°C or 40°C for 6 months and analyzed at an interval of 2 months. Proximate compositions were measured. The results indicated that storage temperature had a significant (p ≤ 0.05) effect on the chemical composition except the fat content. Storage at high temperature (40°C) elevated the chemical composition of the garlic paste except the ash content. Irrespective of variety, storage for 6 months elevated moisture, fat, fiber, and ash contents. Sensory evaluation was measured. The results indicated that garlic variety (Dongola and Berber) had a significant (p ≤ 0.05) effect on sensory evaluation of garlic paste. Storage at low temperature (25°C) elevated the sensory evaluation of garlic paste. Irrespective of variety, storage for 4 months elevated sensory evaluation except color. Organic acids (Ascorbic and citric acids) or their blends are recommended to produce a shelf stable garlic paste for up to 6 months at storage temperature of 25°C or less.

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