Optimization of microwave-assisted extraction of bajra milk using response surface methodology
DOI:
https://doi.org/10.14719/pst.5377Keywords:
bajra, microwave-assisted extraction, nutritional value, RSMAbstract
Millets, especially bajra, are known for their ability to thrive in harsh climates and resist pests. Bajra contains high nutritional values, including a high level of protein, fiber and essential minerals like iron, zinc, calcium, and magnesium. Plant-based beverages such as bajra milk are becoming more popular as lactose-free, nutritious alternatives to dairy milk. Bajra milk is rich in antioxidants, phenolic acids, and flavonoids, offering health benefits such as improved heart health, diabetes control, and immune system support. Microwave-assisted extraction (MAE) has proven to be an energy-efficient and a sustainable technique for producing plant-based milks like bajra milk. Compared to conventional methods, MAE reduces nutrient loss, speeds up the process, and improves the protein content, viscosity, and sensory acceptability. Response surface methodology (RSM) was used to optimize the extraction processes, identifying ideal conditions of soaking time of 16 h, microwave time of 1.5 min, and a temperature of 85 °C. Under these parameters, the extraction yield was 70.23%, with a protein content of 5.57 g/100 ml, and an overall acceptability rating of 7.2. The aim of this present study is to use the RSM tool to optimize the microwave-assisted extraction of bajra milk and compare the physicochemical and nutritional properties of the conventional method and MAE, MAE bajra milk as a cost effective, ecofriendly solution for large scale plant-based milk production positioning bajra as a valuable alternative.
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Babele PK, Kudapa H, Singh Y, Varshney RK, Kumar A. Mainstreaming orphan millets for advancing climate smart agriculture to secure nutrition and health. Frontiers in Plant Science. 2022;13. https://doi.org/10.3389/fpls.2022.902536
Gessaroli M, Frazzoni L, Sikandar U, Bronzetti G, Pession A, et al. Nutrient intakes in adult and pediatric coeliac disease patients on gluten-free diet: a systematic review and meta-analysis. European Journal of Clinical Nutrition. 2023;77(8):784-93. https://doi.org/10.1038/s41430-023-01280-0
Yadav S, Singh HC, Singh DR. Nutritional quality of millets and their value-added products with the potential health benefits: A review. Int. J. Curr. Microbiol. App. Sci. 2021;10(10):163-75. https://doi.org/10.20546/ijcmas.2021.1010.019
Kumar A, Kaur A, Tomer V, Rasane P, Gupta K. Development of nutri cereals and milk-based beverage: Process optimization and validation of improved nutritional properties. Journal of Food Process Engineering. 2020;43(1). https://doi.org/10.1111/jfpe.13025
Bhati KT, Kumar S, Haileslassie A, Whitbread AM. Assessment of agricultural technologies for Dryland systems in South Asia: A case study of Western Rajasthan, India. [monograph on the Internet]. Hyderabad, India: ICRISAT; 2017. Available from: http://oar.icrisat.org/id/eprint/10837
Nambiar VS, Dhaduk JJ, Sareen N, Shahu T, Desai R. Potential functional implications of pearl millet (Pennisetum glaucum) in health and disease. Journal of Applied Pharmaceutical Science. 2011:62-67.
USDA Foreign Agricultural Service. India: Dairy and Products Annual. GAIN: 2017. IN6126.
Tsubaki S, Onda A, Hiraoka M, Fujii S, Azuma JI, Wada Y. Microwave-assisted water extraction of carbohydrates from unutilized biomass: water extraction of bioactive compounds, from plants to drug development, Elsevier. 2017;199-219. https://doi.org/10.1016/B978-0-12-809380-1.00007-3
Flórez N, Conde E, Domínguez H. Microwave assisted water extraction of plant compounds. Journal of Chemical Technology & Biotechnology. 2015;90(4):590-607. https://doi.org/10.1002/jctb.4519
Varghese T, Pare A. Effect of microwave assisted extraction on yield and protein characteristics of soymilk. Journal of Food Engineering. 2019; 262:92-9. https://doi.org/10.1016/j.jfoodeng.2019.05.020
Mushtaq M, Sultana B, Anwar F, Adnan A, Rizvi SS. Enzyme-assisted supercritical fluid extraction of phenolic antioxidants from pomegranate peel. The Journal of Supercritical Fluids. 2015; 104:122-31. https://doi.org/10.1016/j.supflu.2015.05.020
Smith NW, Dave AC, Hill JP, McNabb WC. Nutritional assessment of plant-based beverages in comparison to bovine milk. Frontiers in Nutrition. 2022;9. https://doi.org/10.3389/fnut.2022.957486
Kratchanova M, Pavlova E, Panchev I. The effect of microwave heating of fresh orange peels on the fruit tissue and quality of extracted pectin. Carbohydrate Polymers. 2004;56(2):181-85. https://doi.org/10.1016/j.carbpol.2004.01.009
Xiang S, Zou H, Liu Y, Ruan R. Effects of microwave heating on the protein structure, digestion properties and Maillard products of gluten. Journal of Food Science and Technology. 2020;57:2139-49. https://doi.org/10.1007/s13197-020-04249-0
Rajpurohit B, Li Y. Overview on pulse proteins for future foods: Ingredient development and novel applications. Journal of Future Foods. 2023;3(4):340-56. https://doi.org/10.1016/j.jfutfo.2023.03.005
Chen X, Yang J, Shen M, Chen Y, Yu Q, Xie J. Structure, function and advance application of microwave-treated polysaccharide: A review. Trends in Food Science & Technology. 2022;123:198-209. https://doi.org/10.1016/j.tifs.2022.03.016
Aourach M, González-de-Peredo AV, Vázquez-Espinosa M, Essalmani H, et al. Optimization and comparison of ultrasound and microwave-assisted extraction of phenolic compounds from cotton-lavender (Santolina chamaecyparissus L.). Agronomy. 2021;11(1):84. https://doi.org/10.3390/agronomy11010084
Dhar R, Chakraborty S. Effect of continuous microwave processing on enzymes and quality attributes of bael beverage. Food Chemistry. 2024;453. https://doi.org/10.1016/j.foodchem.2024.139621
Vanishree S, Kammar MR, Nidoni U. Development and evaluation of pearl millet based novel health drink. Advances in Life Sciences. 2016;5(13):5483-86.
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Copyright (c) 2024 T Siva Sakthi, S Amutha, R Vijayalakshmi, M Gunasekaran, K Prabhakaran, S Vellaikumar
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