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Nishant KUMAR, HIMANSHU, HIMANI. Bio-recovery of tannin from pomegranate (cv. Bhagwa and Ganesh) peel by ultrasonic assisted extraction; Proceedings of NanoBioMat 2025(2): 92-98

BIO-RECOVERY OF TANNIN FROM POMEGRANATE (CV. BHAGWA AND GANESH) PEEL BY ULTRASONIC ASSISTED EXTRACTION

Nishant KUMAR^{1, *}, HIMANSHU², HIMANI²

¹ Amity Food and Agriculture Foundation, Amity University, Noida Sector 125, Noida, Uttar Pradesh 201313, India

² Department of Botany, Baba Mast Nath University, Rohtak-124021, Haryana, India

* Correspondence: nishantniftem@gmail.com

ABSTRACT

Tannins are the paramount group of plant secondary metabolites, which help in precipitation and binding of proteins, and other organic compounds such as alkaloids and amino acids. The present study was focused on investigating effects of solvents (methanol, ethanol, water, acetone, hexane) and drying conditions (freeze drying, tray oven drying and sun drying) on total tannin content of two varieties of pomegranate (Bhagwa and Ganesh). The results demonstrated that the freeze-drying powder of both cultivars BFD (77.04%) and GFD (56.25) showed the highest tannin content in methanol solvents as compared to other dried powder and solvents. Also, ethanol showed the high amount of tannins percentage in freeze drying powder of both cultivars BFD (41.50%) and GFD (38.86%). In aqueous extract of pomegranate peel powder the maximum amount of tannin content was recorded in BFD (35.91%) followed by GFD (33.32%), BTD (32.56%), GTD (31.31%), respectively.

Keywords: Pomegranate peel; Waste utilization; Tannin content; Solvents; Drying methods