TY - JOUR
T1 - Effect of UV-C radiation on bioactive compounds of pineapple (Ananas comosus L. Merr.) by-products
AU - Freitas, Ana
AU - Moldão-Martins, Margarida
AU - Costa, Helena S.
AU - Albuquerque, Tânia G.
AU - Valente, Ana
AU - Sanches-Silva, Ana
N1 - Publisher Copyright:
© 2014 Society of Chemical Industry.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - BACKGROUND: The industrial processing of pineapple generates a high quantity of by-products. To reduce the environmental impact of these by-products and the inherent cost of their treatment, it is important to characterise and valorise these products, converting them into high added value products. Ultra-violet radiation is one of the main sustainable sanitation techniques for fruits. Since this radiation can induce plant stress which can promote the biosynthesis of bioactive compounds, it is important to evaluate its effect in fruits. RESULTS: The amounts of vitamins (C and E) and carotenoids (α-carotene, β-carotene, β-cryptoxanthin, lutein, lycopene, neoxanthin, violaxanthin and zeaxanthin) in pineapple by-products (core and rind) were analysed before and after treatment with UV radiation. All treated and untreated pineapple by-products contained β-carotene as the main carotenoid (rind, 2537-3225 μg; and core, 960-994 μg 100 g-1 DW). Pineapple rind also contained lutein (288-297 μg 100 g-1 DW) and α-carotene (89-126 μg 100 g-1 DW). CONCLUSION: The results provide evidence of the potential of pineapple by-products as a source of bioactive compounds with antioxidant activity, which can be used by pharmaceutical, cosmetics and food industries. In addition, UV-C was shown to be a treatment that can add nutritional value to pineapple by-products.
AB - BACKGROUND: The industrial processing of pineapple generates a high quantity of by-products. To reduce the environmental impact of these by-products and the inherent cost of their treatment, it is important to characterise and valorise these products, converting them into high added value products. Ultra-violet radiation is one of the main sustainable sanitation techniques for fruits. Since this radiation can induce plant stress which can promote the biosynthesis of bioactive compounds, it is important to evaluate its effect in fruits. RESULTS: The amounts of vitamins (C and E) and carotenoids (α-carotene, β-carotene, β-cryptoxanthin, lutein, lycopene, neoxanthin, violaxanthin and zeaxanthin) in pineapple by-products (core and rind) were analysed before and after treatment with UV radiation. All treated and untreated pineapple by-products contained β-carotene as the main carotenoid (rind, 2537-3225 μg; and core, 960-994 μg 100 g-1 DW). Pineapple rind also contained lutein (288-297 μg 100 g-1 DW) and α-carotene (89-126 μg 100 g-1 DW). CONCLUSION: The results provide evidence of the potential of pineapple by-products as a source of bioactive compounds with antioxidant activity, which can be used by pharmaceutical, cosmetics and food industries. In addition, UV-C was shown to be a treatment that can add nutritional value to pineapple by-products.
KW - Bioactive compounds
KW - By-products
KW - Pineapple
KW - UV-C radiation
KW - Ultra-high performance liquid chromatography
UR - http://www.scopus.com/inward/record.url?scp=84922779459&partnerID=8YFLogxK
U2 - 10.1002/jsfa.6751
DO - 10.1002/jsfa.6751
M3 - Article
C2 - 24852602
AN - SCOPUS:84922779459
SN - 0022-5142
VL - 95
SP - 44
EP - 52
JO - Journal of the Science of Food and Agriculture
JF - Journal of the Science of Food and Agriculture
IS - 1
ER -
