ANALYSIS OF BIOACTIVE COMPOUNDS IN AVAILABLE SEAWEEDS IN BANGLADESH AND DEVELOPMENT OF CRACKERS BY USING THESE SEAWEEDS

Abstract

Seaweed is an unrevealed treasure of the ocean. Due to its high nutrition value such as its bioactive compounds it can be called as a treasure. But most of the people are not concern about it. So the study was conducted to disclose the nutritional value of seaweeds and to incorporate seaweed in a food as we chose crackers. Proximate analysis was done to determine protein, fiber, fat and ash percentage.Enteromorpha, Gracilaria, Hypneawas chosen to conduct the study.Total polyphenol content (TPC), total flavonoid content (TFC), total anthocyanin content (TAC), and antioxidant activity (AOA) of seaweed were all determined as part of the bioactive analysis. Using the DPPH test technique, antioxidant activity was measured. The antioxidant activity was7 mg/100g on average.Enteromorphahad the highest antioxidant activityand Hypnea was the lowest.Total polyphenol content ranged from 236.667±5.773 to 603.333±5.773 mg GAE/100g.Greater total polyphenol content was in Gracilaria(603.333±5.773 mg GAE/100g), whereasHypnea (236.667±5.773 mg GAE/100g) had lowest TPC. TFC content varied from Hypnea (18.169±.016 mg QE/100g) to Gracilaria(429.506±.079 mg QE/100g). The highest anthocyanin was found in Enteromorpha(152.830±.209 mg TA/100 g), while the lowest was found in Hypnea (41.137±.180 mg TA/100 g).Hypnea had the maximum moister content (16.00 %). Highest protein percentage was found in Gracilaria(27.13%), where Enteromorphahad (8.93%). Enteromorphahad fiber content of (16.45%), which was the highest. Enteromorphahad greater ash content (21.39%) and Gracilariahad lowest ash content (7.71%). According to the study we can say that seaweed is a great resource of bioactive compounds with high nutritious value and functional food such as seaweed crackers will be acceptable to the consumer.