Aug 21, 2023

4. Phenolic compounds present in Areca nut (Karnataka, India): Part – II


A comprehensive study on the Total Phenolic Compounds” Present in the unripe (Green) areca nuts of 6-7 month’s maturity was carried out in my lab by my team in NITK Surathkal. Generally, the harvesting season for green nuts starts in September and continues up to December for making Red Supari (Kempadike) in Karnataka State. The fresh nuts of 6-7 months’ maturity harvested by the farmers for making “Red Supari” (kempadike) were collected from various districts of Karnataka in Dec 2021 & Nov 2022. The locations were chosen so that most of the prominent, traditional Red Supari producing Taluks were covered in this study. The goal was to study the effect of geographical locations on the chemical constituents of the areca nut. The sample locations are pictorial represented below.


The total phenolic content of the fresh areca nut samples was determined immediately brought to the lab under frozen state and the chemical constituents were determined the next day.

The data is presented below.






Lot of variations in the phenolic content was noticed among the samples. The areca nuts cultivated in the relatively dry regions of Shivamogga, Davanagere, Chickmagalur and Haveri districts had higher phenolics compared to other regions.

                                                                        *** 

4. Rules for Tambula (Betel quid) consumption as per ancient Indian treatises

  Due to numerous health benefits, its social acceptance, popularity and the associated religious sanctity, Tambula consumption was widespre...