| Autor: |
Wani, Khalid Mehmood, Uppaluri, Ramagopal V. S. |
| Zdroj: |
Biomass Conversion & Biorefinery; Nov2024, Vol. 14 Issue 22, p28603-28618, 16p |
| Abstrakt: |
Pectin extraction from pomelo peel was carried out using normal and pulsed mode of ultrasound-assisted extraction (UAE) and acidic hot water extraction (ACHWE) processes. The influence of sonication time (SOT) and pH on the pectin yield (PY) and degree of esterification (DE) were evaluated using a face-centered design (FCD)-based response surface methodology (RSM). The extraction was performed with fixed choice of dried pomelo peel powder to water ratio (1:15 g/mL) and extraction temperature (65 °C). The findings showed that the normal ultrasound-assisted aqueous extract possessed 3–35.3% pectin yield with 40.73–84.9% DE for an alternation in the degrees of freedom as 1.5–3.5 pH and 5–30 min SOT. For pulsed mode, the corresponding aqueous extract constituted 5.5–40.41% pectin yield with 47.6–88.6% DE. These findings revealed that the pectin extraction with the ACHWE (using citric acid) process inferred lower yield and DE (14. 8 ± 0.11% and 51.5 ± 0.16%, respectively) in comparison to the optimal findings obtained with the UAE. As a result, the application of ultrasound affirmed a better PY and DE characteristics in comparison with the conventional ACHWE. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink