Antioxidant and colour in selected local fruits

Arnida Hani Teha and Damia Fakhira Abdul Halim and Haslaniza Hashim (2024) Antioxidant and colour in selected local fruits. Journal of Agrobiotechnology (Malaysia), 15 (S1). pp. 98-109. ISSN 2180-1983

Fruit pigments are associated with the presence of antioxidants. This study determined the content of antioxidant components (total phenolic content (TPC), ascorbic acid, beta carotene and lycopene) and colour in selected local fruits(papaya, watermelon, dragon fruit, wax apple, and jackfruit). The TPC, ascorbic acid, beta carotene and lycopene were determined spectrophotometrically. Ascorbic acid content was determined using the 2,6-Dichlorophenolindophenol (DCPIP) titration method. Colour wasassessed by tristimulus colorimetry based on the reflection spectrum. Total soluble solids (TSS) were also determined. Papaya has TPC (61.86 mg GAE/100 g), ascorbic acid (31.14 mg/100 mL), lycopene (4.82 mg/100 g), beta carotene (19.98 mg /100 g), TSS (10.17 °Brix) and colour profile L*(41.30), a*(24.07), b*(26.48), chroma value (35.79) and hue angle (47.70°). Wax apple has TPC (94.20 mg GAE/100 g), ascorbic acid (11.13 mg/100 mL), lycopene (1.62 mg/100 g), TSS (10.00 °Brix) and colour profile L*(63.42), a*(0.42), b*(7.64), chroma value (7.66) and hue angle (86.69°). Dragon fruit has TPC (179.985 mg GAE/100 g), ascorbic acid (5.94 mg/100 mL), beta carotene (3.98 mg/100 g), TSS (10.30 °Brix) and colour profile L*(21.45), b*(0.66), chroma value (6.86) and hueangle (5.52°). Jackfruit has TPC (75.16 mg GAE/100 g), lycopene (2.31 mg/100 g), beta carotene (9.25 mg/100 g), TSS (20.43 °Brix) and colour profile L*(71.74), a*(5.79) and hue angle (82.98°). Watermelon has ascorbic acid (19.28 mg/100 mL), lycopene (36.55 mg/100 g), beta carotene (14.37 mg/100 g) and colour profile b* (12.36), chroma value (26.98) and hue angle (27.22°). The a* value has a significant positive correlation (p<0.05) with the content of ascorbic acid, lycopene, and beta carotene while the chroma value shows a negative correlation with the total phenolic content (p<0.05). The b* value showing a negative correlation with the total phenolic content (p<0.05). Local fruits can be a good source of nutrient, phytochemicals, and antioxidants.

Full text available from: Official URL: https://journal.unisza.edu.my/agrobiotechnology/in...

Abstract

Fruit pigments are associated with the presence of antioxidants. This study determined the content of antioxidant components (total phenolic content (TPC), ascorbic acid, beta carotene and lycopene) and colour in selected local fruits(papaya, watermelon, dragon fruit, wax apple, and jackfruit). The TPC, ascorbic acid, beta carotene and lycopene were determined spectrophotometrically. Ascorbic acid content was determined using the 2,6-Dichlorophenolindophenol (DCPIP) titration method. Colour wasassessed by tristimulus colorimetry based on the reflection spectrum. Total soluble solids (TSS) were also determined. Papaya has TPC (61.86 mg GAE/100 g), ascorbic acid (31.14 mg/100 mL), lycopene (4.82 mg/100 g), beta carotene (19.98 mg /100 g), TSS (10.17 °Brix) and colour profile L*(41.30), a*(24.07), b*(26.48), chroma value (35.79) and hue angle (47.70°). Wax apple has TPC (94.20 mg GAE/100 g), ascorbic acid (11.13 mg/100 mL), lycopene (1.62 mg/100 g), TSS (10.00 °Brix) and colour profile L*(63.42), a*(0.42), b*(7.64), chroma value (7.66) and hue angle (86.69°). Dragon fruit has TPC (179.985 mg GAE/100 g), ascorbic acid (5.94 mg/100 mL), beta carotene (3.98 mg/100 g), TSS (10.30 °Brix) and colour profile L*(21.45), b*(0.66), chroma value (6.86) and hueangle (5.52°). Jackfruit has TPC (75.16 mg GAE/100 g), lycopene (2.31 mg/100 g), beta carotene (9.25 mg/100 g), TSS (20.43 °Brix) and colour profile L*(71.74), a*(5.79) and hue angle (82.98°). Watermelon has ascorbic acid (19.28 mg/100 mL), lycopene (36.55 mg/100 g), beta carotene (14.37 mg/100 g) and colour profile b* (12.36), chroma value (26.98) and hue angle (27.22°). The a* value has a significant positive correlation (p<0.05) with the content of ascorbic acid, lycopene, and beta carotene while the chroma value shows a negative correlation with the total phenolic content (p<0.05). The b* value showing a negative correlation with the total phenolic content (p<0.05). Local fruits can be a good source of nutrient, phytochemicals, and antioxidants.

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Item Type:	Article
AGROVOC Term:	fruits
AGROVOC Term:	antioxidants
AGROVOC Term:	nutritive value
AGROVOC Term:	research
AGROVOC Term:	statistical methods
AGROVOC Term:	ascorbic acids
AGROVOC Term:	fruit colour
AGROVOC Term:	phenolic content
AGROVOC Term:	phytochemicals
AGROVOC Term:	health
Geographical Term:	Malaysia
Uncontrolled Keywords:	Ascorbic acid, beta carotene, colour, lycopene, phenolic
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	28 Mar 2025 01:21
Last Modified:	28 Mar 2025 01:21
URI:	http://webagris.upm.edu.my/id/eprint/1704

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