Stability of carotenoids in pumpkin during the different heat treatments
Authors
Paunović, DraganaMarković, Jovana
Ivanović, Evica
Rabrenović, Biljana
Despotović, Saša
Banjac, Nebojša
Other (Published version)
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Pumpkin contains a high content of carotenoids, the majority of which are alpha-carotene, beta-carotene, alpha-cryptoxanthin, lutein/zeaxanthin and violaxanthin. The main beneficial effect of carotenoids derives from their antioxidant activity, i.e. protecting cells against the harmful effects of free radicals. The aim of this study was to determine the content of total pumpkin carotenoids during cooking, baking in oven and a microwave oven to examine how different heat treatments affect on the stability of the carotenoids. The standard spectrophotometric method was used to determine the content of total carotenoids, measuring the absorbance of extracted samples at a wavelength of 445 nm. Samples were extracted by petrolether. According to the obtained results, the highest content of carotenoids was in fresh pumpkin (172,93 μg/g dry matter), then in a pumpkin baked in the oven (66,63 μg/g dry matter), then in a pumpkin baked in microwave oven (65,97 μg/g dry matter) and the lowest cont...ent of total carotenoids was determined in cooked pumpkin (54,42 μg/g dry matter). These results indicated that different heat treatments were significantly affected on the stability of carotenoids in pumpkin. The higher losses were during cooking, while the losses of baking in the oven and microwave oven were similar.
Keywords:
Pumpkin / Heat treatment / Total carotenoids / SpectrophotometrySource:
1st International Conference on Advanced Production and Processing, 2019, 32-Funding / projects:
- Develooment and utilization of novel and traditional technologies in production of competitive food products with added valued for national and global market - CREATING WEALTH FROM THE WEALTH OF SERBIA (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46001)
- Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46010)
- Development of new technology for production of red wine and diatery supplements reach with polyphenols with cardioprotective effects (RS-MESTD-Technological Development (TD or TR)-31020)
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Poljoprivredni fakultetTY - GEN AU - Paunović, Dragana AU - Marković, Jovana AU - Ivanović, Evica AU - Rabrenović, Biljana AU - Despotović, Saša AU - Banjac, Nebojša PY - 2019 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/6891 AB - Pumpkin contains a high content of carotenoids, the majority of which are alpha-carotene, beta-carotene, alpha-cryptoxanthin, lutein/zeaxanthin and violaxanthin. The main beneficial effect of carotenoids derives from their antioxidant activity, i.e. protecting cells against the harmful effects of free radicals. The aim of this study was to determine the content of total pumpkin carotenoids during cooking, baking in oven and a microwave oven to examine how different heat treatments affect on the stability of the carotenoids. The standard spectrophotometric method was used to determine the content of total carotenoids, measuring the absorbance of extracted samples at a wavelength of 445 nm. Samples were extracted by petrolether. According to the obtained results, the highest content of carotenoids was in fresh pumpkin (172,93 μg/g dry matter), then in a pumpkin baked in the oven (66,63 μg/g dry matter), then in a pumpkin baked in microwave oven (65,97 μg/g dry matter) and the lowest content of total carotenoids was determined in cooked pumpkin (54,42 μg/g dry matter). These results indicated that different heat treatments were significantly affected on the stability of carotenoids in pumpkin. The higher losses were during cooking, while the losses of baking in the oven and microwave oven were similar. T2 - 1st International Conference on Advanced Production and Processing T1 - Stability of carotenoids in pumpkin during the different heat treatments SP - 32 UR - https://hdl.handle.net/21.15107/rcub_agrospace_6891 ER -
@misc{ author = "Paunović, Dragana and Marković, Jovana and Ivanović, Evica and Rabrenović, Biljana and Despotović, Saša and Banjac, Nebojša", year = "2019", abstract = "Pumpkin contains a high content of carotenoids, the majority of which are alpha-carotene, beta-carotene, alpha-cryptoxanthin, lutein/zeaxanthin and violaxanthin. The main beneficial effect of carotenoids derives from their antioxidant activity, i.e. protecting cells against the harmful effects of free radicals. The aim of this study was to determine the content of total pumpkin carotenoids during cooking, baking in oven and a microwave oven to examine how different heat treatments affect on the stability of the carotenoids. The standard spectrophotometric method was used to determine the content of total carotenoids, measuring the absorbance of extracted samples at a wavelength of 445 nm. Samples were extracted by petrolether. According to the obtained results, the highest content of carotenoids was in fresh pumpkin (172,93 μg/g dry matter), then in a pumpkin baked in the oven (66,63 μg/g dry matter), then in a pumpkin baked in microwave oven (65,97 μg/g dry matter) and the lowest content of total carotenoids was determined in cooked pumpkin (54,42 μg/g dry matter). These results indicated that different heat treatments were significantly affected on the stability of carotenoids in pumpkin. The higher losses were during cooking, while the losses of baking in the oven and microwave oven were similar.", journal = "1st International Conference on Advanced Production and Processing", title = "Stability of carotenoids in pumpkin during the different heat treatments", pages = "32", url = "https://hdl.handle.net/21.15107/rcub_agrospace_6891" }
Paunović, D., Marković, J., Ivanović, E., Rabrenović, B., Despotović, S.,& Banjac, N.. (2019). Stability of carotenoids in pumpkin during the different heat treatments. in 1st International Conference on Advanced Production and Processing, 32. https://hdl.handle.net/21.15107/rcub_agrospace_6891
Paunović D, Marković J, Ivanović E, Rabrenović B, Despotović S, Banjac N. Stability of carotenoids in pumpkin during the different heat treatments. in 1st International Conference on Advanced Production and Processing. 2019;:32. https://hdl.handle.net/21.15107/rcub_agrospace_6891 .
Paunović, Dragana, Marković, Jovana, Ivanović, Evica, Rabrenović, Biljana, Despotović, Saša, Banjac, Nebojša, "Stability of carotenoids in pumpkin during the different heat treatments" in 1st International Conference on Advanced Production and Processing (2019):32, https://hdl.handle.net/21.15107/rcub_agrospace_6891 .