Optimization of Different Variable for Eco-friendly Extraction of Betalains and Phytochemicals from Beetroot Pomace

Beetroot pomace is majorly considered as waste from beetroot processing industry though it contains higher amount of betalains and other phytochemicals which can be utilized in medicinal and food applications. In the present study, Fourier Transform Infrared Spectroscopy analysis of pomace also conf...

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Bibliographic Details
Published in:Waste and biomass valorization 2018-09, Vol.9 (9), p.1485-1494
Main Authors: Kushwaha, Rinku, Kumar, Vikas, Vyas, Gitanjali, Kaur, Jasleen
Format: Article
Language:English
Subjects:
Antioxidants
Composts
Engineering
Environment
Environmental Engineering/Biotechnology
Fourier transforms
Functional groups
Industrial Pollution Prevention
Infrared analysis
Infrared spectroscopy
Optimization
Original Paper
pH effects
Phytochemicals
Processing industry
Renewable and Green Energy
Response surface methodology
Sugar beets
Temperature
Waste Management/Waste Technology
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Summary:Beetroot pomace is majorly considered as waste from beetroot processing industry though it contains higher amount of betalains and other phytochemicals which can be utilized in medicinal and food applications. In the present study, Fourier Transform Infrared Spectroscopy analysis of pomace also confirmed the presence of the betalian and phenolics by identifying the major functional groups. Therefore, an attempt has been made to optimize an eco-friendly method for extraction of betalains and phytochemicals from beetroot pomace by considering different experimental variables such as solid-to-liquid ratio (1:15–1:45), temperature (30–70 °C), time (2.50–12.50 min) and pH (1.50–5.50) using response surface methodology. Beetroot pomace was dried, grinded and subjected for extraction of betacyanin, betaxanthin, phenolics and antioxidants using different combinations of experimental variables. A prediction model was optimized and validated to get the optimum conditions. Solid-to-liquid ratio (1:15), temperature (50.04 °C), time (10 min.) and pH (2.50) was the optimized process conditions for the extraction of betalains and other phytochemicals achieved with the best fit of desirability i.e. 0.889. So, it is concluded that beetroot pomace can be successfully utilized cost effectively rather than simply thoroughly it in the open conditions or converting it in to compost.
ISSN:1877-2641
1877-265X
DOI:10.1007/s12649-017-9953-6