Evaluación del rendimiento y viscosidad de k-carragenina proveniente de Chondracanthus chamissoi y Mazzaella canaliculatus durante la colecta de verano e invierno
Loading...
Código QR
Authors
Romani Vasquez, Sarita Jackeline
Contact Email
Abstract
La k- carragenina es un polisacárido extraido de algas rojas, y ampliamente utilizado en la
industria alimentaria. La presente investigación tiene como objetivo analizar el rendimiento
(% en peso seco) y calidad (viscosidad) de κ-carragenina proveniente de Chondracanthus
chamissoi y Mazaella canaliculatus durante la colecta de verano e invierno para determinar
la mejor temporada de cosecha, para lo cual, se colectó 10 kg de cada especie de alga en la
playa Mendieta, Pisco, Perú; en setiembre del 2021 (invierno) y enero del 2022 (verano).
Fueron clasificadas en sus fases de vida (gametofito y tetrasporofito). Posteriormente se
realizó la extracción de k-carragenina, la identificación por espectroscopia infrarroja (FTIR)
y la medición de la viscosidad. Los resultados obtenidos en el rendimiento de k-carragenina,
evidenciaron diferencias significativas (p-value<0.05), en la fase gametofítica de M.
canaliculatus se obtuvo mayor rendimiento en invierno (31.74%) que en verano (24.32%).
Por otra parte, los gametofitos de C. chamissoi, evidenciaron un mayor rendimiento en la
temporada de verano (28.41%) que en invierno (23.29%). En relación al perfil obtenido de
k-carragenina por FTIR todos los tratamientos se identificaron como k-carragenina debido a
dos picos representativos de este coloide que se encuentra entre 920-930 y 846- 845 cm-1.
En el caso de la viscosidad, no presentó diferencia significativa entre las estaciones (p-value
> 0.05), pero sí entre las especies M. canaliculatus y C. chamissoi y sus fases de vida siendo
la C. chamissoi en la fase gametofítica, la cual presento mayor viscosidad con 19.60cps y
19.29cps en verano e invierno, respectivamente. Mientras que, M. canaliculatus presentó
mayor viscosidad 17.70 cps en verano y 17.19cps en invierno, respectivamente. Por lo que,
estos resultados ayudarán a determinar la mejor temporada de cosecha para el desarrollo
sostenible de la industria de la k- carragenina en el Perú.
k-carrageenan is a polysaccharide extracted from red algae, and widely used in the food industry. This research was carried out to analyze the yield (% in dry weight) and quality (viscosity) of κ- carrageenan from Chondracanthus chamissoi and Mazaella canaliculatus during the summer and winter conditions, for that, 10 kg of each seaweed were collected on the beach Mendieta, Pisco, Peru; in September 2021 (winter) and January 2022 (summer). They were classified into two phases (gametophyte and tetrasporophyte). Subsequently, k- carrageenan extraction, infrared spectroscopy (FTIR) identification and viscosity measurement were performed. The results obtained in kappa-carrageenan yield, between the two summer and winter seasons, showed significant differences (p-value<0.05) largely in the gametophytic phase of M. canaliculatus, where higher yield was obtained in winter (31.74%) than in summer (24.32%). On the other hand, the gametophytes of C. chamissoi showed a higher yield in the summer season (28.41%) than in winter (23.29%). About the k-carrageenan profile obtained by FTIR, all treatments were identified as kappa-carrageenan due to two representative peaks of this colloid between 920-930 and 846-845 cm-1. In the case of viscosity, there was no significant difference between the stations (p-value > 0.05), but between the species M. canaliculatus and C. chamissoi and their life phases, being C. chamissoi in the gametophytic phase, which presented higher viscosity with 19.60cp and 19.29cp in summer and winter, respectively. Meanwhile, M. canaliculatus showed 17.70 cp in summer and 17.19cp in winter. Therefore, these results will help to determine the best harvest season for the sustainable development of the k-carrageenan industry in Peru.
k-carrageenan is a polysaccharide extracted from red algae, and widely used in the food industry. This research was carried out to analyze the yield (% in dry weight) and quality (viscosity) of κ- carrageenan from Chondracanthus chamissoi and Mazaella canaliculatus during the summer and winter conditions, for that, 10 kg of each seaweed were collected on the beach Mendieta, Pisco, Peru; in September 2021 (winter) and January 2022 (summer). They were classified into two phases (gametophyte and tetrasporophyte). Subsequently, k- carrageenan extraction, infrared spectroscopy (FTIR) identification and viscosity measurement were performed. The results obtained in kappa-carrageenan yield, between the two summer and winter seasons, showed significant differences (p-value<0.05) largely in the gametophytic phase of M. canaliculatus, where higher yield was obtained in winter (31.74%) than in summer (24.32%). On the other hand, the gametophytes of C. chamissoi showed a higher yield in the summer season (28.41%) than in winter (23.29%). About the k-carrageenan profile obtained by FTIR, all treatments were identified as kappa-carrageenan due to two representative peaks of this colloid between 920-930 and 846-845 cm-1. In the case of viscosity, there was no significant difference between the stations (p-value > 0.05), but between the species M. canaliculatus and C. chamissoi and their life phases, being C. chamissoi in the gametophytic phase, which presented higher viscosity with 19.60cp and 19.29cp in summer and winter, respectively. Meanwhile, M. canaliculatus showed 17.70 cp in summer and 17.19cp in winter. Therefore, these results will help to determine the best harvest season for the sustainable development of the k-carrageenan industry in Peru.
Description
Universidad Nacional Agraria La Molina. Facultad de Ciencias. Departamento Académico de Biología
Keywords
Algas; Análisis de los alimentos; Composición de los alimentos; Química de los alimentos; Evaluación
Citation
Date
2023
Collections
Seleccionar año de consulta:
Licencia de uso

Excepto si se señala otra cosa, la licencia del ítem se describe como info:eu-repo/semantics/openAccess