Garlic (Allium sativum L.), a member of the Alliaceae family, has been widely used in cuisine and traditional medicine since ancient times. Black garlic is produced by fermentation of fresh garlic under controlled conditions for a certain period at high temperature (60-90°C) and high humidity (70-90%). According to the Turkish Statistical Institute (TURKSTAT) data, Kastamonu and Gaziantep garlic varieties are the most cultivated garlic varieties in our country. Changes in protein, sugar content, antioxidant capacity (DPPH and ABTS methods), total phenolic content, 5-hydroxymethylfurfural (HMF) content, and organosulfur compound profiles were investigated in samples taken from Kastamonu and Gaziantep fresh garlic at 7, 14, 21, and 28 days of black garlic production under 65°C temperature and 70% humidity conditions. With these analyses, the differences between black garlic and fresh garlic and the changes in black garlic during the production process were revealed in detail. It was determined that the amount of total phenolic content and antioxidant capacities increased in the black garlic production processes of both regions compared to fresh garlic. While sucrose was fresh garlic’s dominant sugar, fructose was black garlic’s dominant sugar. Among the organosulfur compounds, allicin was dominant in fresh garlic and SAC in black garlic. It was determined that SAC was formed after the enzymatic conversion of ɣ-glutamyl-S-alk(en)yl-L-cysteine and ɣ-glutamyl and the temperature and fermentation time used in black garlic production increased the formation of SAC. The protein content ranging between 5.8%-7.3% in fresh garlic was 13.1-14.2% in black garlic. Fresh and black garlic from the Gaziantep region was determined to have higher total phenolic content, antioxidant capacity, and organosulfur compound contents.
This study was supported by TUBITAK (The Scientific and Technological Research Council of Turkey) within the scope of the 1001 project with project number "219O174".
This study was supported by TUBITAK (The Scientific and Technological Research Council of Turkey) within the scope of the 1001 project with project number "219O174".
Primary Language | English |
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Subjects | Post Harvest Horticultural Technologies (Incl. Transportation and Storage), Fruit-Vegetables Technology, Food Sciences (Other) |
Journal Section | Research Articles |
Authors | |
Project Number | This study was supported by TUBITAK (The Scientific and Technological Research Council of Turkey) within the scope of the 1001 project with project number "219O174". |
Publication Date | March 25, 2024 |
Submission Date | January 5, 2024 |
Acceptance Date | February 26, 2024 |
Published in Issue | Year 2024 Volume: 8 Issue: 1 |
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