Pomegranate juice concentration through the consecutive application of a plasma modified reverse osmosis membrane and a membrane contactor

ONSEKİZOĞLU BAĞCI P., Kahvecioglu H., GÜLEÇ H. A., BAĞCI U.

Food and Bioproducts Processing, cilt.124, ss.233-243, 2020 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 124
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.fbp.2020.09.003
  • Dergi Adı: Food and Bioproducts Processing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Biotechnology Research Abstracts, CAB Abstracts, Communication Abstracts, Compendex, Food Science & Technology Abstracts, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.233-243
  • Anahtar Kelimeler: Fruit juice concentrate, Low-pressure plasma, Membrane distillation, Membrane surface modification, Non-thermal juice concentration
  • Trakya Üniversitesi Adresli: Evet

Özet

A low-pressure nitrogen plasma (LPNP) modified commercial thin-film composite membrane was used for pre-concentration of the clarified pomegranate juice (C-PJ) by reverse osmosis (RO). Pre-concentrates then submitted to osmotic distillation (OD) for further concentration. The productivity of the integrated membrane process was benchmarked considering both the performance and the final product quality. The modified RO membranes had great potential for shortening duration of consecutive concentration process, enabling up to 36% time saving during concentration of the C-PJ from 15.6°Brix to >65°Brix. Aroma losses observed in stand-alone OD are also prevented by shortening the duration of OD. Lower retention of malic acid, gallic acid, glucose, and fructose was observed due to the increased permeability following LPNP modification. However, these losses did not seem to affect the total acidity, total phenolic content, and total antioxidant activity of the concentrates obtained. The total color change was also in the range of barely noticeable values.