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7th Edition of

International Nutrition Research Conference

March 27-28, 2025 | Singapore

Nutri 2022

Ali Imran

Speaker at International Nutrition Research Conference 2022 - Ali Imran
Government College University, Pakistan
Title : Extraction and characterization of polyphenols from fruits and vegetable waste through green extraction technologies with special reference to antioxidant profile

Abstract:

Food insecurity is deemed as one of the biggest challenges faced by the developing economies and Pakistan is no more exception. Moreover, the food waste further amplified the scarcity. The utilization of food waste is considered one of the prime strategies to support the circular economy and food security. The mandate of the current investigation was to extract and characterize the polyphenols from selected fruits and vegetable waste via green extraction technologies. Purposely, banana, orange, apple, onion and garlic processing industry by-products (peel& husk) were collected and subjected to compositional analysis followed by nutritional profiling with special reference to minerals. Later, the antioxidants from the studied peel were extracted by adapting the supercritical and ultrasound added extraction techniques alongside conventional extraction. The results indicated that the tested peels exhibited a promising amount of fiber and protein alongside K, Mg, iron, sodium and calcium. Among the extraction modules, supercritical at 3000psi elucidated the highest total phenolic contents (TPC), Total flavonoids (TF), DPPH, FRAP, ABTS activity as 473.73±23.6 mg GAE/100g, 126.39±9.54 mg CE/100g, 53.81±3.82 (%), 22.24±0.25 µM Fe+2/g and 12.14±0.15µM TE/g, respectively followed by ultrasound and conventional extraction. Among the peels, onion peel showed the highest antioxidant activity as 914.44±39.4 mg GAE/100g) 178.19±14.5 mg CE/100g, 82.47±5.48 %, 30.22±0.19 µM Fe+2/g and 17.33±0.26 µM TE/g for TPC, TF, DPPH, FRAP and ABTS, respectively. 

Biography:

Ali Imran is currently working as assistant Professor in the Institute of Home and Food Science from more then 6yrs. He has expertise in formulation of plant based nutraceutical based dietary intervention against oxidative stress mediated maladies both in animal and human models. He has more then 50 high impacted publication in reputed food science and nutrition journals. He also won many Competitive research grants relevant to his expertise. Currently, he is working on the role of plant based nutraceuticals in brain health on animal models. He also wrote more then 10 book chapters on health endorsing perspective of polyphenols.

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