Physico-chemical characteristics of the oil from macauba kernels stored after drying at different temperatures
Resumo
Studies of post-harvest storage and drying in macauba fruit (Acrocomia aculeata (Jacq.) Lodd. Mart) are still in the early stages. The aim of this work was to investigate the effect of drying on the quality of macauba kernel oil during storage. Drying was carried out under three different air temperatures: 40°C, 50°C and 60°C. Four replications were used for each temperature. After drying, the kernels were stored for 0, 60, 120, 240 and 360 days, and the following physico-chemical analyses were carried out for each period: kernel oil content, acidity index, oxidative stability, water activity and oil colour. An increase in storage time resulted in an increase in the acidity index and a reduction in the oxidative stability of the oil in all treatments. The mean value for water activity in the oil ranged from 0.56 to 0.68. The mean values of the L* and b* coordinates did not differ from the control, except for the storage times of 0 and 60 days. There was a difference in the a* coordinate between the drying processes when compared to the control. No significant differences were seen for oil content. It was concluded that drying can be efficient tool in controlling the quality of kernel oil during storage.
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ALENCAR, E. R. et al. Qualidade dos grãos de soja armazenados em diferentes condições. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 13, n. 5, p. 606-613, 2009.
ALI, F. S.; SHAMSUDIN, R.; YUNUS, R. The effect of storage time of chopped oil palm fruit bunches on the palm oil quality. Agriculture and Agricultural Science Procedia, v. 2, n. 1, p. 165-172, 2014.
AMARO, H. T. R. et al. Storage of Crambe abyssinica Hochst. ex R. E. Fr. seeds after drying at different temperatures. Revista de Ciências Agrárias, v. 43, n. 2, p. 210-2019, 2020.
ANVISA. Agência Nacional de Vigilância Sanitária. Resolução de diretoria colegiada - RDC Nº. 270, de 22 de setembro de 2005. Ministério da Saúde. Disponível em: http://www.anvisa.gov.br. Acessado em: Ago 25,2020.
AOCS. American Oil Chemists’ Society. Official methods and recommended practices of the American Oil Chemists’ Society. Champaign, AOCS Press, 1997. 54 p.
BENNAMOUN, L.; KHAMA, R.; LÉONARD, A. Convective drying of a single cherry tomato: modeling and experimental study. Food and Bioproducts Processing, v. 94, p. 14-123, 2015.
BIABANI, A. et al. Effects of seed deterioration and inoculation with Mesorhizobium ciceri on yield and plant performance of chickpea. Australian Journal of Crop Science, v. 5, n. 1, p. 66-70, 2011.
BOROMPICHAICHARTKUL, C. et al. Improving quality of macadamia nut (Macadamia integrifolia) through the use of hybrid drying process. Journal of Food Engineering, v. 93, n. 3, p. 348-353, 2009.
CÉSAR, A. S. et al. The prospects of using Acrocomia aculeata (macaúba) a non-edible biodiesel feedstock in Brazil. Renewable and Sustainable Energy Reviews, v. 49, n. 9, p. 1213-1220, 2015.
CORSINI, M. S.; JORGE, N. S. Estabilidade oxidativa de óleos vegetais utilizados em frituras de mandioca palito congelada. Ciência e Tecnologia de Alimentos, v. 26, n. 1, p. 27-32, 2006.
COSTA, C. F. et al. Mathematical modeling and determination of thermodynamic properties of jabuticaba peel during the drying process. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 20, n. 6, p. 576-580, 2016.
EVARISTO, A. B. et al. Caracterização fisico-química de frutos de macaúba provenientes de três regiões do estado de Minas Gerais. Revista Agrotecnologia, v. 8, n. 2, p. 81-92, 2017.
EVARISTO, A. B. et al. Harvest and post-harvest conditions influencing macauba (Acrocomia aculeata) oil quality atributes. Industrial Crops and Products, v. 85, p. 63-73, 2016.
GHINI, R.; BETTIOL, W. Diagnose. In: KIMATI, H. Manual de fitopatologia. São Paulo: Agronômica Ceres, 1995. p. 786-803.
IHA, O. K. et al. Physicochemical properties of Syagrus coronata and Acrocomia aculeata oils for biofuel production. Industrial Crops and Products, v. 62, p. 318-322, 2014.
IAL. Instituto Adolfo Lutz. Normas analíticas do Instituto Adolfo Lutz: métodos químicos e físicos para análise de alimentos. São Paulo: IMESP, 1985. p. 116-118.
KUMAR, C.; KARIM, M. A.; JOARDDER, M. U. H. Intermittent drying of food products: a critical review. Journal of Food Engineering, v. 121, p. 48-57, 2014.
LIMA, E. E.; FIGUEIRÊDO, R. M. F.; QUEIROZ, A. J. M. Cinética de secagem de polpa de facheiro. Revista Brasileira de Produtos Agroindustriais, v. 9, n. 1, p. 17-28, 2007.
MORETTO, E.; FETT, R. Tecnologia de óleos e gorduras vegetais na indústria de alimentos. São Paulo: Varela. 1998. 150 p.
PARK, K. J. et al. Conceitos de processo e equipamentos de secagem. 2007. Disponível em:< http://www.feagri.unicamp.br/ctea/projpesq.html.> Acesso em: 31 mar. 2020.
PIMENTEL, L. D. et al. Effect of nitrogen and potassium rates on early development of macaw palm. Revista Brasileira de Ciência do Solo, v. 39, n. 6, p. 671-1680, 2015.
SILVA G. N. et al. Drying of macaw palm fruits and its influence on oil quality. Semina: Ciências Agrárias, v. 38, n. 5, p. 3019-3030, 2017.
SILVA, F. A. da. et al. Estabilidade oxidativa de amêndoas de noz macadâmia secas por micro-ondas com ar quente. Pesquisa Agropecuária Tropical, v. 41, n. 2, p. 286-292, 2011.
SILVA G. N. et al. Post-harvest quality of ozonated macauba fruits for biodiesel production. Revista Caatinga, v. 32, n. 1, p. 92-100, 2019.
SILVA G. N. et al. Air drying of macauba fruits: maintaining oil quality for biodiesel production. Acta Scientiarum-Agronomy, v. 42, p. e43451, 2020.
SMANIOTTO, T. A. S. et al. Qualidade fisiológica das sementes de soja armazenadas em diferentes condições. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 18, n. 4, p. 446-453, 2014.
TAN, Z. et al. Optimized microemulsion production of biodiesel over lipase-catalyzed transesterification of soybean oil by response surface methodology. Green Processing and Synthesis, v. 3, n. 6, p. 471-478, 2014.
TORREZAN, R.; JARDINE, J. G.; VITALI, A. A. Preservação de alimentos com o uso dos métodos combinados: uma revisão. Boletim SBCTA, v. 31, n. 2, p. 214-228, 1997.
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