Aqueous extraction of bitter gourd (Momordica charantiaL.) juice and optimization of operating conditions

Jain, Amit ; De, Sirshendu (2016) Aqueous extraction of bitter gourd (Momordica charantiaL.) juice and optimization of operating conditions Fruits, 71 (6). pp. 379-387. ISSN 0248-1294

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Official URL: http://doi.org/10.1051/fruits/2016033

Related URL: http://dx.doi.org/10.1051/fruits/2016033

Abstract

Bitter gourd (Momordica charantia), belonging to the Cucurbitaceae family, is a well-recognized therapeutic herbal plant with numerous nutritious benefits, improving the overall health of consumers. It possesses many phytonutrients with medicinal activities. Aqueous extraction of phytonutrients is the safest procedure, which can circumvent the challenges associated with other extraction techniques. Materials and methods. To optimize the process parameters for aqueous extraction of bitter gourd juice, three independent variables, i.e. the fruit:water ratio, extraction time and temperature, were selected within the ranges of 0.3–1.0 g mL−1, 20–160 min and 30–90 °C, respectively. A Box-Behnken design of a numerical optimization technique was used to optimize these variables. The corresponding responses were estimated in terms of concentrations of protein, polyphenols and total solids, and juice clarity. Results and discussion. The effects of linear, interaction and quadratic terms of independent variables on the responses were investigated. The present study generated a regression model that could explain 99% of the total variability, with a coefficient of determination (R2) of 0.99. Conclusion. The optimum conditions for aqueous extraction of bitter gourd fruit are: a fruit:water ratio of 0.48 g mL−1, an extraction time of 95 min and an extraction temperature of 68 °C. The corresponding responses at optimum points were estimated to be 131.7 mg L−1, 23.1 mg GAE 100 mL−1, 0.89 g 100 mL−1 and 60.6% for concentrations of protein, polyphenols, total solids and juice clarity, respectively.

Item Type:Article
Source:Copyright of this article belongs to EDP Sciences.
Keywords:India; Bitter Gourd; Momordica Charantia; Food Technology; Nutritional Value; Phenolics; Response Surface Methodology
ID Code:136261
Deposited On:21 May 2025 07:40
Last Modified:21 May 2025 07:40

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