|
KMID : 1134820120410040450
|
|
Journal of the Korean Society of Food Science and Nutrition
2012 Volume.41 No. 4 p.450 ~ p.455
|
|
|
Nutritional Components and Antioxidant Activities of Boysenberry
|
|
Jeong Chang-Ho
Jang Chi-Woen
Lee Koo-Yul
Kim Il-Hun
Shim Ki-Hwan
|
|
|
Abstract
|
|
|
|
In this study, the nutritional components and antioxidant activities of boysenberry were investigated. The values of pH, soluble solids, and total acidity were 3.62, 13.43oBrix, and 1.15%, respectively. Hunter L, a, and b values were 20.14, 13.19, and 3.20, respectively. Proximate compositions were as follows: moisture 79.52%, crude protein 1.08%, crude lipid 0.73%, crude fiber 2.51%, ash 0.62%, and nitrogen free extract 15.54%. Mineral contents of boysenberry were K 219.30, P 46.25, and Ca 39.60 mg/100 g. Regarding amino acid contents, boysenberry was very rich in alanine 75.22 mg/100 g and deficient in cystine 2.83 mg/100 g. Free sugar compositions were as follows: glucose (6.91%) and fructose (5.88%). Contents of ascorbic acid and total phenolics were 79.52 mg/100 g and 39.20 mg GAE/g, respectively. The DPPH radical scavenging activity and reducing power of boysenberry extract were 89.11% and 1.31 (absorbance) at a concentration of 1.25 mg/mL, respectively. Therefore, boysenberry can be utilized as an effective source of functional food substances such as natural antioxidants.
|
|
|
KEYWORD
|
|
|
boysenberry, nutritional component, antioxidant activity
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|