Journal Article

Profiles of S-alk(en)ylcysteine sulfoxides in various garlic genotypes

Hornickova, J.,Vysoka Skola Chemicko-technologicka, Prague (Czech Republic). Ustav Chemie a Analyzy Potravin, Velisek, J.,Vysoka Skola Chemicko-technologicka, Prague (Czech Republic). Ustav Chemie a Analyzy Potravin, Cejpek, K.,Vysoka Skola Chemicko-technologicka, Prague (Czech Republic). Ustav Chemie a Analyzy Potravin, Kubec, R.,Jihoceska Univ., Ceske Budejovice (Czech Republic). Katedra Aplikovane Chemie, Stavelikova, H.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic), Ovesna, J.,Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic)

2010

Overview

The contents of major S-alk(en)ylcysteine sulfoxides (namely alliin, methiin and isoalliin) were determined in a set of 58 various garlic genotypes (22 flowering plant morphotypes, 14 semi bolting plants and 22 scape absent morphotype plants). The plants were cultivated in four successive years (2005-2008) and analysed immediately after harvest and subsequently after eight weeks of storage at 5 deg C. The total content of the three cysteine derivatives in fresh samples varied between 3.35 mg/g fresh weight and 12.77 mg/g fresh weight, with the mean of 7.50 mg/g fresh weight and the average relative proportions of alliin/methiin/isoalliin of 83/16/1. Upon 8-week storage, the average total amount of S-alk(en)ylcysteine sulfoxides increased by 30% to 9.75 mg/g fresh weight, with the alliin/methiin/isoalliin ratio changing to 82/14/4. The data obtained were statistically evaluated using linear discrimination analysis to distinguish the differences between the years of harvest, between freshly harvested and stored samples, and between the individual morphotypes. While the year-to-year differences between the samples were statistically not very significant, the fresh and stored samples as well as the individual garlic morphotypes differed considerably. Our results indicate that the content of S-alk(en)ylcysteine sulfoxides primarily depends on various genetic factors and post-harvest storage conditions, whereas the climatic conditions during the growth (e.g. temperature, irrigation) influence their level to a lesser extent.

• Publisher: Czech Academy of Agricultural Sciences (CAAS),Czech Academy of Agricultural Sciences
• Subject: AIL / AIR TEMPERATURE / AJO / ALLIIN / ALLIUM SATIVUM / ALMACENAMIENTO / Bolting / BULBE / BULBO / BULBS / Climatic conditions / COMPOSE ORGANOSOUFRE / COMPUESTO ORGANICO DEL AZUFRE / CONDICIONES ATMOSFERICAS / CONDITIONS METEOROLOGIQUES / CONTENIDO DE MATERIA SECA / DATOS METEOROLOGICOS / DENREES ENTREPOSEES / DONNEE METEOROLOGIQUE / DRY MATTER CONTENT / ENVIRONMENTAL FACTORS / ETHIIN / FACTEUR DU MILIEU / FACTORES AMBIENTALES / Flowering / Food industry / FRESH PRODUCTS / GARLIC / Gene banks / Genetic factors / GENOTIPOS / GENOTYPE / GENOTYPES / HPLC / http://www.fao.org/aos/agrovoc#c_11091 / http://www.fao.org/aos/agrovoc#c_1144 / http://www.fao.org/aos/agrovoc#c_15739 / http://www.fao.org/aos/agrovoc#c_230 / http://www.fao.org/aos/agrovoc#c_2398 / http://www.fao.org/aos/agrovoc#c_24469 / http://www.fao.org/aos/agrovoc#c_2594 / http://www.fao.org/aos/agrovoc#c_290 / http://www.fao.org/aos/agrovoc#c_29564 / http://www.fao.org/aos/agrovoc#c_29565 / http://www.fao.org/aos/agrovoc#c_3225 / http://www.fao.org/aos/agrovoc#c_33118 / http://www.fao.org/aos/agrovoc#c_3892 / http://www.fao.org/aos/agrovoc#c_3954 / http://www.fao.org/aos/agrovoc#c_5402 / http://www.fao.org/aos/agrovoc#c_6161 / http://www.fao.org/aos/agrovoc#c_7427 / INSOLACION / INSOLATION / IRRIGATION / ISOALLIIN / linear discrimination analysis / METEOROLOGICAL FACTORS / METHIIN / ORGANOSULPHUR COMPOUNDS / Pharmaceutical industry / Plants (botany) / PRECIPITACION ATMOSFERICA / PRECIPITATION / PRODUCTOS ALMACENADOS / PRODUCTOS FRESCOS / PRODUIT FRAIS / RIEGO / s-alk(en)ylcysteine sulfoxides / Samples / Statistical analysis / Statistical methods / STOCKAGE / STORAGE / Storage conditions / STORED PRODUCTS / SULFOXIDES / TEMPERATURA DEL AIRE / TEMPERATURE DE L'AIR / TENEUR EN MATIERE SECHE / WEATHER DATA / Weight