Optimising UV-C preharvest light for stilbene synthesis stimulation in table grape Applications.pdf.pdf

INNFOO-01281; No of Pages 8
Innovative Food Science and Emerging Technologies xxx (2015) xxx–xxx
Contents lists available at ScienceDirect
Innovative Food Science and Emerging Technologies
journal homepage: ate/ifset
Optimising UV-C preharvest light for stilbene synthesis stimulation in table
grape: Applications
Raúl F. Guerrero ⁎, Emma Cantos-Villar, María I. Fernández-Marín, Belén Puertas, María J. Serrano-Albarrán
Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Rancho de la Merced, Junta de Andalucía, Ctra. Trebujena, Km , . Box 589, Jerez de la Frontera, Cádiz, Spain
article info abstract
Article history: UV-C treatment has been studied for increasing stilbene in grape and inhibiting the development of spoilage
Received 21 November 2014 anism. In this work, treatment application day (7, 5, 3 and 1 days previous to harvest) and light dose
Received in revised form 20 February 2015 (from 966 to 27,990 J/m2) have been optimised together with storage conditions (20 °C–80% RH, 4 °C–60% RH
Accepted 20 February 2015
bined) when grapes were treated on plant with UV-C light. trans-Resveratrol and ε-viniferin were
Available online xxxx
monitored in grapes after treatments. Maximum trans-resveratrol concentration was achieved after 24 h
Keywords: regardless of preharvest application day. It increased between 46 to and 22-folds. A dose low