An ecofriendly agar extraction strategy using KOH for boiling extraction and MgCl2 for alkali neutralization

Zhang, Jingyun; Yin, Xiaole; Chen, Fuquan; Xiao, Anfeng

doi:10.1016/j.scp.2022.100909

Cited by 1 publication

(2 citation statements)

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“…Hydrocolloids are available in the market, categorized by their synthetic, semi-synthetic and natural origin [12,[24][25][26]. However, in light of increasing consumer consciousness regarding environmental preservation and sustainability, natural hydrocolloids are increasingly preferred [27].…”

Section: Introductionmentioning

confidence: 99%

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A High Andean Hydrocolloid Extracted by Microatomization: Preliminary Optimization in Aqueous Stability

Choque-Quispe,

Ligarda-Samanez

et al. 2024

Polymers

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Aqueous suspensions rely on electrostatic interactions among suspended solids, posing a significant challenge to maintaining stability during storage, particularly in the food and pharmaceutical industries, where synthetic stabilizers are commonly employed. However, there is a growing interest in exploring new materials derived from natural and environmentally friendly sources. This study aimed to optimize the stability parameters of a novel Altoandino Nostoc Sphaericum hydrocolloid (NSH) extracted via micro atomization. Suspensions were prepared by varying the pH, gelatinization temperature and NSH dosage using a 23 factorial arrangement, resulting in eight treatments stored under non-controlled conditions for 20 days. Stability was assessed through turbidity, sedimentation (as sediment transmittance), ζ potential, particle size, color and UV-Vis scanning. Optimization of parameters was conducted using empirical equations, with evaluation based on the correlation coefficient (R2), average relative error (ARE) and X2. The suspensions exhibited high stability throughout the storage period, with optimized control parameters identified at a pH of 4.5, gelatinization temperature of 84.55 °C and NSH dosage of 0.08 g/L. Simulated values included turbidity (99.00%), sedimentation (72.34%), ζ potential (−25.64 mV), particle size (300.00 nm) and color index (−2.00), with simulated results aligning with practical application. These findings suggest the potential use of NSH as a substitute for commercial hydrocolloids, albeit with consideration for color limitations that require further investigation.

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Section: Introductionmentioning

confidence: 99%

“…Commercial hydrocolloids are typically extracted through processes utilizing strong or weak acids and alkalis, often incorporating salts [22,23,27,28]. These extraction methods commonly involve stages of size reduction and water elimination.…”

Section: Introductionmentioning

confidence: 99%

A High Andean Hydrocolloid Extracted by Microatomization: Preliminary Optimization in Aqueous Stability

Choque-Quispe,

Ligarda-Samanez

et al. 2024

Polymers

View full text Add to dashboard Cite

show abstract

An ecofriendly agar extraction strategy using KOH for boiling extraction and MgCl2 for alkali neutralization

Cited by 1 publication

References 44 publications

A High Andean Hydrocolloid Extracted by Microatomization: Preliminary Optimization in Aqueous Stability

A High Andean Hydrocolloid Extracted by Microatomization: Preliminary Optimization in Aqueous Stability

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