Combined use of hydrocolloids in pomegranate juice and their effects on clarification and copigmentation

Turkyilmaz M., HAMZAOĞLU F., ÖZKAN M.

INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, cilt.55, sa.4, ss.1426-1436, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 4
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1111/ijfs.14409
  • Dergi Adı: INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Compendex, Food Science & Technology Abstracts, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1426-1436
  • Anahtar Kelimeler: Albumin, anthocyanin stability, casein, chitosan, colour density, xanthan gum, CHERRY JUICE, PROTEIN, COLOR, CHITOSAN, STABILIZATION, ANTHOCYANINS, ANTIOXIDANT, XANTHAN, WINES, HAZE
  • Ankara Üniversitesi Adresli: Evet

Özet

Pomegranate juices (PJs) were clarified using hydrocolloids [albumin (A), casein (C), chitosan (CH) and xanthan gum (XG)] and in combination with each other. The lowest turbidity was observed in PJs clarified with 'CH+XG' and 'A+C+CH'. Unlike 'CH+XG', effects of albumin and its combinations on clarity were mainly related with the contents of ellagic acid (r = -0.861), alpha-punicalagin (r = -0.761), rutin (r = -0.734), beta-punicalagin (r = -0.730) and total punicalagin (r = -0.713). 'CH+XG' caused the highest phenolic (602 mg L-1) and anthocyanin (449 mg L-1) contents, and the second highest A(max) (0.811 ABS), resulting from copigmentation of delphinidin-3-glucoside and delphinidin-3,5-diglucoside with CH. Since A showed moderate copigmentation effect, A had lower hyperchromic effect than CH. Moreover, C reduced A(max), anthocyanin content and colour density when combined with other hydrocolloids. As a result, 'CH+XG' would be the best combination to obtain high clarity, maintain phenolics and anthocyanins and provide high copigmentation effect in PJ.