Thermal stabilities of lycopene and β-carotene in tomato pulp and pink grapefruit juice

Sevindik Baç H., Yemiş O., ÖZKAN M.

Journal of Food Engineering, cilt.337, 2023 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 337
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.jfoodeng.2022.111217
  • Dergi Adı: Journal of Food Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Food Science & Technology Abstracts, INSPEC, Veterinary Science Database
  • Anahtar Kelimeler: Lycopene stability, ss-carotene stability, Reflectance colour, Tomato pulp, Pink grapefruit juice, Kinetic parameters, BETA-CAROTENE, DEGRADATION KINETICS, MODEL SYSTEMS, STORAGE, COLOR, ISOMERIZATION, PRODUCTS, LIGHT, HEAT, QUALITY
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2022 Elsevier LtdThermal stabilities of lycopene and β-carotene in tomato pulp and pink grapefruit juice were studied at 80, 95 and 110 °C. Lycopene and β-carotene degradations in both products followed to first-order reaction kinetics, but biphasic curves were obtained for β-carotene degradation. Stabilities of both pigments are highly affected by processing temperatures. For example, t1/2 values for lycopene degradation decreased from 7.4 at 80 °C to 4.0 h at 110 °C in tomato pulp, and from 32.1 to 5.9 h in pink grapefruit juice, respectively. Similar decreases in t1/2 values (46.8–27.3 h in tomato pulp and 113.6 to 11.7 h in grapefruit juice, respectively) were obtained for β-carotene degradations. Lycopene and β-carotene degradations in tomato pulp were not very sensitive to temperature elevations (Ea = 22.7 and 20.2 kJ/mol, respectively), but very sensitive in pink grapefruit juice (Ea = 63.8 and 85.3 kJ/mol, respectively). High correlations were found between a*, b*and h° values, and lycopene concentrations (r = 0.659–0.978) and β-carotene concentrations (r = 0.647–0.997).