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Provedor de dados:  Ciênc. Tecnol. Aliment.
País:  Brazil
Título:  The effect of sonication and heat treatment on the physicochemical, nutritional and microbiological properties of different sugarcane variants
Autores:  JASMI,Nazariah
MANSOR,Nusrah
LIM,Elicia Jitming
YUSOF,Noor Liyana
HAJAR-AZHARI,Siti
RAHIM,Muhamad Hafiz Abd
Data:  2019-01-01
Ano:  2019
Palavras-chave:  Sugarcane
Heat
Sonication
Physicochemical
Nutritional
Microbial
Resumo:  Abstract Red sugarcane (RS) is a lesser bred of sugarcane variant in Malaysia compared to yellow sugarcane (YS), thus less data is available regarding this species. In this study, the physicochemical and microbiological properties of RS was determined and compared with YS under different conditions. Both sugarcane variants were subjected to heat and sonication treatments for 5 and 15 minutes as a method for preservation. RS contains a higher °Brix (15) compared to YS (14), and was unchanged while YS demonstrated a significant reduction. Furthermore, RS displayed a superior fructose (+802%), glucose (+119%) and sucrose (+17.91%) levels in all samples and they were largely preserved during both treatments. However, RS was sensitive to colour changes, as darker juice (decrease in lightness and increase in redness) was produced after treatments. RS possessed lower phenolic content (-31.15%) and antioxidant activity (-11.51%) than YS, and was significantly affected by both treatments. Sonication was more effective in reducing the microbial content than heat in both treatments. These findings indicated that RS is better at retaining its physicochemical properties under preservation treatment, but less resistant in preserving its appearance and nutritional values.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005031112
Editor:  Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Relação:  10.1590/fst.12619
Formato:  text/html
Fonte:  Food Science and Technology n.ahead 2019
Direitos:  info:eu-repo/semantics/openAccess
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