Effect of UV‐C radiation on bioactive compounds of pineapple (Ananas comosus L. Merr.) by‐products. (26th June 2014)

• Record Type: Journal Article
• Authors: Freitas, Ana; Moldão‐Martins, Margarida; Costa, Helena S; Albuquerque, Tânia G; Valente, Ana; Sanches‐Silva, Ana
• Is Part Of: Journal of the science of food and agriculture. Volume 95:Number 1(2015:Jan. 15)
• Page Start: 44
• Page End: 52
• Publication Date: 2014-06-26
• Subjects: Food -- Periodicals; Agriculture -- Periodicals; 664
• DOI: 10.1002/jsfa.6751
• Languages: English
• ISSNs: 0022-5142

Abstract

<abstract abstract-type="main" id="jsfa6751-abs-0001"> <title>Abstract</title> <sec id="jsfa6751-sec-0001" sec-type="section"> <title>BACKGROUND</title> <p id="jsfa6751-para-0001">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.</p> </sec> <sec id="jsfa6751-sec-0002" sec-type="section"> <title>RESULTS</title> <p id="jsfa6751-para-0002">The amounts of vitamins (C and E) and carotenoids (<italic>α</italic>‐carotene, <italic>β</italic>‐carotene, <italic>β</italic>‐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 <italic>β</italic>‐carotene as the main carotenoid (rind, 2537–3225 µg; and core, 960–994 µg 100 g<sup>−1</sup> DW). Pineapple rind also contained lutein (288–297 µg 100 g<sup>−1</sup> DW) and <italic>α</italic>‐carotene (89–126 µg 100 g<sup>−1</sup> DW).</p> </sec> <sec id="jsfa6751-sec-0003" sec-type="section"> <title>CONCLUSION</title> <p id="jsfa6751-para-0003">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. © 2014 Society of Chemical Industry</p> </sec> </abstract>