The impact of LED lighting on the yield, morphological structure and some bioactive components in alfalfa (Medicago sativa L.) sprouts

Grzegorz Fiutak , Magdalena Michalczyk , Magda Filipczak-Fiutak , Leszek Fiedor , Krzysztof Surówka

Abstract

The aim of this study was to evaluate the impact of selected types of LED (light emitting diodes) lighting on the quality of alfalfa sprouts. In the experiment, cold white, warm white and multicolour: (red, green, blue-RGB) LEDs were applied, and dispersed sunlight was used as a control. The product was examined for the yield and the contents of dry matter, total polyphenols, ascorbic acid, chlorophylls, β-carotene, lutein, neoxanthin and violaxanthin. Cotyledons’ mass in the whole plant increased under LED illumination and was up to 50% greater for sprouts grown in RGB light compared to those cultivated in dispersed sunlight. The highest chlorophyll and carotenoid pigment contents in cotyledons were observed under RGB LED and cold white treatments. Similarly, RGB LEDs allows one to obtain the product with the highest level of total phenolic compounds. The highest ascorbic acid content was observed in sprouts growing under sunlight, followed by RGB.
Author Grzegorz Fiutak (FoFT / DoRaFC)
Grzegorz Fiutak,,
- Department of Refrigeration and Food Concentrates
, Magdalena Michalczyk (FoFT / DoRaFC)
Magdalena Michalczyk,,
- Department of Refrigeration and Food Concentrates
, Magda Filipczak-Fiutak (FoFT / DoAPT)
Magda Filipczak-Fiutak,,
- Department of Animal Product Technology
, Leszek Fiedor
Leszek Fiedor,,
-
, Krzysztof Surówka (FoFT / DoRaFC)
Krzysztof Surówka,,
- Department of Refrigeration and Food Concentrates
Journal seriesFood Chemistry, ISSN 0308-8146, e-ISSN 1873-7072, (N/A 200 pkt)
Issue year2019
Vol285
Pages53-58
Publication size in sheets0.5
Keywords in EnglishChlorophylls, Carotenes, Xanthophylls, Light spectrum, LED lighting, Alfalfa sprouts
ASJC Classification2700 General Medicine; 1106 Food Science; 1602 Analytical Chemistry
DOIDOI:10.1016/j.foodchem.2019.01.086
URL https://www.sciencedirect.com/science/article/pii/S0308814619301542/pdfft?md5=60ee53125170064e2d5b8f62bbf21ae3&pid=1-s2.0-S0308814619301542-main.pdf
Internal identifierWTŻ/2019/26
Languageen angielski
Score (nominal)200
Score sourcejournalList
Publication indicators WoS Citations = 5; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 2.17; WoS Impact Factor: 2018 = 5.399 (2) - 2018=5.488 (5)
Citation count*
Additional fields
FinansowanieThe study was carried out within the framework of a research project funded by the National Science Centre in Poland based on decision no. DEC-2017/01/X/NZ9/00206.
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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