Optimization of Agar Preparation Based on Transparency

Ying Cai; Zhan Xia Wu; Zhao Yu Zhang; Zhang Hu

doi:10.4028/www.scientific.net/MSF.1033.103

Paper Titles

Utilization of Powdered Cassava Stem as an Alternative Bioadsorbent for Lead (Pb²⁺) Removal from Aqueous Solution
p.82

Encapsulation and In Vitro Release Test of Flavonoid and Phenolic Compounds Extracted from Watermelon (Citrullus lanatus) Rind: Comparison of Oven and Spray Drying Treatments
p.87

Effect of Sintering Temperature on Mechanical Property of Ti + ZrO₂Prepared by Spark Plasma Sintering for Biomedical Applications
p.93

Design and Development of a Mold for Patternless Casting Using AM/3D Printing
p.98

Optimization of Agar Preparation Based on Transparency
p.103

Failure Analysis and Evaluation of Material Compatibility of Solder Paste
p.109

Co(OH)₂/TiO₂ Nanotube Composite for High-Rate Performance Supercapacitor
p.116

Effects of Ga Substitution on Micromorphology and Static Magnetic Properties of Self-Biased M-Type Sr Hexaferrites
p.121

Research Progress in Modification of Nickel-Rich Ternary Cathode Material LiNi_0.8Co_0.1Mn_0.1O₂ for Lithium Ion Batteries
p.126

HomeMaterials Science ForumMaterials Science Forum Vol. 1033Optimization of Agar Preparation Based on...

Optimization of Agar Preparation Based on Transparency

Abstract:

To meet the requirement for high transparency of agar gel used in tissue culture, bacteriological applications, and high-quality cosmetics and food, this study on improving the transparency of agar products was carried out by using activated carbon for decolorization and perlite for aiding filtration. The results showed that the pre-coating filtration method was better than that of the mixed slurry filtration, so an orthogonal experiment optimization was conducted using the pre-coating filtration method based on the single factor experimental results. The experimental results showed that the optimal process conditions based on the transparency index were: concentration of agar of 1.30%, activated carbon dosage of 0.80%, processing temperature of 95 °C, and treatment time of 20 min. Agar products with gel transparency of 58.93% and blue-ray whiteness value of 93.82 could be obtained under these experimental conditions. The order of the factors influencing the decolorization ratio of agar was as follows: activated carbon dosage > concentration of agar > processing temperature > treatment time. The experimental results provided effective procession methods for the production enterprises based on transparency and increased economic benefits, and it was of practical significance.

You might also be interested in these eBooks

Mechanical Engineering, Materials Science and Civil Engineering V

View Preview

Info:

Periodical:

Materials Science Forum (Volume 1033)

Pages:

103-108

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1033.103

Citation:

Cite this paper

Online since:

June 2021

Authors:

Ying Cai, Zhan Xia Wu, Zhao Yu Zhang, Zhang Hu*

Keywords:

Agar, Process Optimization, Transparency

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] P. Ngamnikom, N. Phawaphuthanon, M. Kim, W. Boonsupthip, I. Shin, D.H. Chung, Fabrication of core-shell structured macrocapsules by electro-coextrusion with agar-hydrocolloid mixtures for precooked food applications: Textural and release characteristics, Int. J. Food Sci. Technol. 52 (2017) 2538-2546.

DOI: 10.1111/ijfs.13539

Google Scholar

[2] S. Shankar, J.W. Rhim, Preparation and characterization of agar/lignin/silver nanoparticles composite films with ultraviolet light barrier and antibacterial properties, Food Hydrocolloids 71 (2017) 76-84.

DOI: 10.1016/j.foodhyd.2017.05.002

Google Scholar

[3] S. Roy, J.W. Rhim, Agar-based antioxidant composite films incorporated with melanin nanoparticles, Food Hydrocolloids 94 (2019) 391-398.

DOI: 10.1016/j.foodhyd.2019.03.038

Google Scholar

[4] H.J. Chen, Q. Xiao, H.F. Weng, Y.H. Zhang, Q.M. Yang, A.F. Xiao, Extraction of sulfated agar from Gracilaria lemaneiformis using hydrogen peroxide-assisted enzymatic method, Carbohydr. Polym. 232 (2020) 1-36.

DOI: 10.1016/j.carbpol.2019.115790

Google Scholar

[5] H.Y. Li, X.J. Yu, Y. Jin, W. Zhang, Y.L. Liu, Development of an eco-friendly agar extraction technique from the red seaweed Gracilaria lemaneiformis, Bioresour. Technol. 99 (2008) 3301-3305.

DOI: 10.1016/j.biortech.2007.07.002

Google Scholar

[6] Y.B. Zhu, M.F. Liang, H.B. Li, H. Ni, L.J. Li, Q.B. Li, Z.D. Jiang, A mutant of Pseudoalteromonas carrageenovora arylsulfatase with enhanced enzyme activity and its potential application in improvement of the agar quality, Food Chem. 320 (2020) 1-27.

DOI: 10.1016/j.foodchem.2020.126652

Google Scholar

[7] V. Kumar, M. Nanda, M. Verma, Application of agar liquid-gel transition in cultivation and harvesting of microalgae for biodiesel production, Bioresour. Technol. 243 (2017) 163-168.

DOI: 10.1016/j.biortech.2017.06.080

Google Scholar

[8] B. Qi, X.Q. Yang, Y.Q. Zhao, L.H. Li, S.J. Chen, J.W. Cen, H.X. Ma, S.Q. Diao, Preparation of Gracilaria lemaneiformis Agarose by Modified DEAE-cellulose Method, Food Sci. 30 (2009) 118-121.

Google Scholar