Changes in Chemical Composition Total Phenolic Content and Antioxidant Activities Of Jujube Ziziphus jujuba Mill Fruits at Different Maturation Stages
Yazarlar (2)
Kazim Gündüz Mustafa Kemal Üniversitesi, Türkiye
Prof. Dr. Onur SARAÇOĞLU Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Acta Scientiarum Polonorum Hortorum Cultus (Q4) | ||
| Dergi ISSN | 1644-0692 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 12-2014 |
| Cilt / Sayı / Sayfa | 13 / 2 / 187–195 | DOI | – |
| Özet |
| Jujube (Ziziphus jujuba Mill.) fruit is an important medicinal plant in Turkey. Several characteristics of jujube fruit harvested at four maturation stages were evaluated. The maturation stages were classified by degree (%) of dark color formation on the fruit surface [Stage (S1), 1–10% (S2), 11–50% (S3), 51–100% (S4)]. Fruit weight, width, length, stone weight, flesh/stone ratio, total soluble solids (TSS), titratable acidity (TA), organic acids and specific sugars were determined. Total phenolic content (TPC) was measured along with antioxidant activity (AOC), determined by Ferric Reducing Ability of Plasma (FRAP) and Trolox Equivalent Antioxidant Capacity (TEAC). Results of the study showed that TSS increased from 12.8% to 18.3% from the S1 to the S4 fruit stage, respectively. The S3 had the highest TPC (6518 mg GAE‧kg fw). The highest AOC were recovered from S2 (TEAC; 74.4 μmol TE‧g fw, FRAP; 50.9 μmol TE‧g fw), followed by S3 (TEAC; 63.6 μmol TE‧g fw, FRAP; 37.6 μmol TE‧g fw). The main organic acid was citric acid as determined by the HPLC method. Fructose content tended to be more stable than glucose or sucrose. |
| Anahtar Kelimeler |
| FRAP | Jujube | Organic sugar | Phenolic | TEAC |
