RESUMEN
The use of edible films has garnered significant interest in the food and environmental sectors due to their potential to prevent food deterioration and their biodegradability. This study aimed to develop and characterize edible films based on camu-camu residue, gelatin, and glycerol, evaluating their solubility, thermal, degradability, antioxidant, and water vapor permeability properties of the gelatin matrix. This is the first study incorporating camu-camu into a gelatin and glycerol matrix. The films produced with camu-camu residue were manageable and soluble, with some non-soluble residues, providing a shiny and well-presented appearance. In the biodegradation results, samples 3 and 4 appeared to degrade the most, being two of the three most affected samples in the triplicate. The films showed degradation modifications from the third day of the experiment. In the germination and plant growth analysis, sample 4 exhibited satisfactory development compared to the other samples, emerging as the sample with the best overall result in the analyses, attributed to a 13.84 cm increase in the growth of the upper part of the seedling. These results indicate that the produced materials have potential for food packaging applications.
RESUMEN
Por se tratar de um fruto climatérico, o camu-camu (Myrciaria dubia (H.B.K.) McVaugh) apresenta uma curta vida útil pós-colheita, principalmente quando armazenado em temperatura ambiente (>25 ºC), observando excessiva perda de umidade e aumento na atividade respiratória e na produção de etileno que aceleram a senescência. Assim, o presente trabalho tem por objetivo avaliar o efeito de diferentes doses de radiação gama e ultravioleta C sobre a fisiologia e a qualidade pós-colheita do camu-camu. Os frutos foram tratados com radiação gama (1,0 e 2,0 KGy) e radiação ultravioleta C (1,0 e 2,0 kJ / m2), em seguida, os mesmos foram armazenados sob refrigeração por 21 dias a 10°C e avaliados a cada três dias sobre a: perda de massa fresca, firmeza, sólidos solúveis, acidez titulável, pH, vitamina C e antocianinas totais. O tratamento pós-colheita do camu-camu com radiação gama e ultravioleta C (UV-C), especialmente nas doses de 1,0 kGy e 1,0 kJ/m2, respectivamente é eficiente em preservar a qualidade dos frutos por até 21 dias em ambiente refrigerado e, a exposição às doses de 1,0 kGy e 2,0 kJ/m2 estimula a síntese de antocianinas durante o armazenamento dos frutos.
Because it is a climacteric fruit, camu-camu (Myrciaria dubia (HBK) McVaugh) has a short post-harvest shelf life, especially when stored at room temperature (> 25ºC), observing excessive moisture loss and increased activity respiratory and ethylene production that accelerate senescence. Thus, the present work aims to evaluate the effect of different doses of gamma and ultraviolet C radiation on the physiology and post-harvest quality of camu-camu. The fruits were treated with gamma radiation (1.0 and 2.0 KGy) and ultraviolet radiation C (1.0 and 2.0 kJ / m2), then they were stored under refrigeration for 21 days at 10 ° C and evaluated every three days on: fresh weight loss, firmness, soluble solids, titratable acidity, pH, vitamin C and total anthocyanins. The post-harvest treatment of camu-camu with gamma and ultraviolet C (UV-C) radiation, especially at 1.0 kGy and 1.0 kJ / m2, respectively, is efficient in preserving fruit quality for up to 21 days in a refrigerated environment, and exposure to the 1.0 kGy and 2.0 kJ / m2 doses stimulates anthocyanin synthesis during fruit storage.
Asunto(s)
Fenómenos Químicos , Myrtaceae/efectos de la radiación , Rayos Ultravioleta/efectos adversos , Rayos gamma/efectos adversos , Control de CalidadRESUMEN
Por se tratar de um fruto climatérico, o camu-camu (Myrciaria dubia (H.B.K.) McVaugh) apresenta uma curta vida útil pós-colheita, principalmente quando armazenado em temperatura ambiente (>25 ºC), observando excessiva perda de umidade e aumento na atividade respiratória e na produção de etileno que aceleram a senescência. Assim, o presente trabalho tem por objetivo avaliar o efeito de diferentes doses de radiação gama e ultravioleta C sobre a fisiologia e a qualidade pós-colheita do camu-camu. Os frutos foram tratados com radiação gama (1,0 e 2,0 KGy) e radiação ultravioleta C (1,0 e 2,0 kJ / m2), em seguida, os mesmos foram armazenados sob refrigeração por 21 dias a 10°C e avaliados a cada três dias sobre a: perda de massa fresca, firmeza, sólidos solúveis, acidez titulável, pH, vitamina C e antocianinas totais. O tratamento pós-colheita do camu-camu com radiação gama e ultravioleta C (UV-C), especialmente nas doses de 1,0 kGy e 1,0 kJ/m2, respectivamente é eficiente em preservar a qualidade dos frutos por até 21 dias em ambiente refrigerado e, a exposição às doses de 1,0 kGy e 2,0 kJ/m2 estimula a síntese de antocianinas durante o armazenamento dos frutos.(AU)
Because it is a climacteric fruit, camu-camu (Myrciaria dubia (HBK) McVaugh) has a short post-harvest shelf life, especially when stored at room temperature (> 25ºC), observing excessive moisture loss and increased activity respiratory and ethylene production that accelerate senescence. Thus, the present work aims to evaluate the effect of different doses of gamma and ultraviolet C radiation on the physiology and post-harvest quality of camu-camu. The fruits were treated with gamma radiation (1.0 and 2.0 KGy) and ultraviolet radiation C (1.0 and 2.0 kJ / m2), then they were stored under refrigeration for 21 days at 10 ° C and evaluated every three days on: fresh weight loss, firmness, soluble solids, titratable acidity, pH, vitamin C and total anthocyanins. The post-harvest treatment of camu-camu with gamma and ultraviolet C (UV-C) radiation, especially at 1.0 kGy and 1.0 kJ / m2, respectively, is efficient in preserving fruit quality for up to 21 days in a refrigerated environment, and exposure to the 1.0 kGy and 2.0 kJ / m2 doses stimulates anthocyanin synthesis during fruit storage.(AU)