کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8892144 | 1628512 | 2018 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of the oxidative stability of chia oil-loaded microparticles by thermal, spectroscopic and chemometric methods
ترجمه فارسی عنوان
بررسی پایداری اکسیداتیو از میکروارگانیسم های روغن چیا با استفاده از روش های حرارتی، اسپکتروسکوپی و
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
چکیده انگلیسی
Chia oil has been widely studied due to its benefits to human health, being source of important omega-3 and omega-6. Encapsulation has been studied in order to protect the oil from thermal degradation. In this work, oil from chia seeds was microencapsulated in carnauba wax and thermal stability was evaluated not only by thermal methods but also Spectroscopy and chemometric based analyses. High encapsulation efficiency of both omega-3 and -6 (up to 97%) was verified. Particles presented micrometric sizes, spherical shape and no fissures. Differential Scanning Calorimetry was applied in isothermal and non-isothermal modes and kinetic parameters were determined using the Ozawa-Flynn-Wall (OFW) method. An effective protection of the chia oil was verified by an increase in the oxidative stability in both isothermal (activation energy increased from 73.5 ± 1.5 to 91.8 ± 1.6 kJ molâ1) and non-isothermal (from 87.4 ± 2.1 to 97.3 ± 2.9 kJ molâ1) tests. Increase in the onset oxidation temperature and in the oxidation induction time were also detected. Chia oil and oil-loaded microparticles were subjected to accelerated stability test. Degradation was evaluated by the UV-Vis spectroscopy coupled to chemometry and also by the extinction coefficients, corroborating the increase in the oxidative stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 87, January 2018, Pages 498-506
Journal: LWT - Food Science and Technology - Volume 87, January 2018, Pages 498-506
نویسندگان
Alexandre Guimarães-Inácio, Cristhian Rafael Lopes Francisco, ValquÃria Maeda Rojas, Roberta de Souza Leone, PatrÃcia Valderrama, Evandro Bona, Fernanda Vitória Leimann, Ailey Aparecia Coelho Tanamati, Odinei Hess Gonçalves,