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Volatile Profile, Antioxidant Capacity and Phenolic Content of Istrian Garlic Ecotypes

Iva Bažon ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
Dean Ban ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
Igor Lukić ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
Nikola Major ; Institute of Agriculture and Tourism, Poreč, Croatia
Mario Franić ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
Bernard Prekalj ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia
Smiljana Goreta Ban ; Institute of Agriculture and Tourism, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Zagreb, Croatia


Puni tekst: engleski pdf 274 Kb

str. 235-242

preuzimanja: 84

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Sažetak

Garlic (Allium sativum L.) is among the most important vegetable crops used in diet because
of its sensory properties and positive health effects. Local producers in Istria (Croatia) have
preserved old garlic ecotypes primarily for domestic consumption. Such ecotypes are adapted
to specific agro-ecological conditions of Istria and their biochemical properties have not been
investigated yet. The aim of this study is to determine the diversity of Istrian garlic ecotypes
based on their biochemical profile for further selection of ecotypes with higher biological
value in breeding programs. Garlic bulbs were collected from nine locations in Istria and
analyzed after two months by chromatographic and spectrometric techniques. Volatiles diallyl
sulfide, methyl allyl disulfide, diallyl disulfide, methyl allyl trisulfide, and diallyltrisulfide
showed less variability among ecotypes, while total phenolics ranged from 28.5 to 69.5 mg
gallic acid equivalents/100 g fresh weight. Two ecotypes and a cultivar abundant in phenolics
also showed high antioxidant capacity measured by FRAP or DPPH assays. Several ecotypes
stood out with higher dry matter content indicating their potential for longer storage. It was
assumed that the determined variability in composition could be partly attributed to different
genotypes and growing conditions. This research can contribute to the preservation of garlic
biodiversity in Istria as well as to the establishment of a garlic breeding program.

Ključne riječi

bioactive compounds, breeding, chromatography, DPPH, FRAP, organosulfur compounds

Hrčak ID:

263053

URI

https://hrcak.srce.hr/263053

Posjeta: 189 *