Enhancing Galactomannan Recovery from Coconut Meat: Impact of Autoclaving Pretreatment in a High-Shear Compartment Reactor System

Arief Rakhman Affandi, Sinta Dewi, Iffah Muflihati, Rini Umiyati

Abstract


Galactomannan in coconut meat is tightly bound within its fiber matrix, limiting extraction efficiency. Autoclave pretreatment, combining heat, pressure, and moisture, can loosen this structure and improve galactomannan release. This study examined the effects of autoclaving temperature (100°C–130°C) and water addition (0–45%) on the physical and chemical properties of grated coconut prior to extraction. This study examined the effect of autoclaving temperature on the physicochemical properties and extraction yield of galactomannan. Four pretreatment temperatures were evaluated: 100, 110, 120, and 130 °C. The 100°C treatment produced the highest yield (8.45%), swelling power (8.67%), color values (L* = 53.44, a* = 5.48, b* = 9.09), and reducing sugar content (18.03%). Statistical analysis confirmed that autoclaving temperature significantly influenced extraction yield. Overall, 100°C was identified as the optimal pretreatment condition for enhancing galactomannan extraction from coconut meat.


Keywords


galactomannan extraction; autoclave pretreatment; coconut meat; physicochemical properties

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Affandi, A. R. R., Millati, R., & Hidayat, C. (2024). Sodium Metasilicate-MgO Blend Catalyst for Producing Mono and Diacylglycerol from Palm Kernel Oil Using High Shear Compartment Reactor. Polish Journal of Chemical Technology, 26(4), 17–24. https://doi.org/10.2478/pjct-2024-0035

Al-kayyis, H. K., & Susanti, H. (2016). Perbandingan Metode Somogyi-Nelson Dan Anthrone-Sulfat Pada Penetapan Kadar Gula Pereduksi Dalam Umbi Cilembu (Ipomea batatas L.). Journal of Pharmaceutical Sciences and Community, 13(02), 81–89. https://doi.org/10.24071/jpsc.2016.130206

Al Bukhori, J., Karim, A., & Hariyadi, P. (2019). Pengaruh teknik pengolahan terhadap karakteristik kimia dan swelling power pada tapioka yang dihasilkan. Prosiding Seminar Nasional II Hasil Litbangyasa Industri, 142–148.

Ammar, M. K., Handoussa, H., Hanafi, R. S., El-Shazly, M., & Gad, M. Z. (2022). Multivariate approach for optimization of galactomannan extraction from seeds of Egyptian Trigonella foenum-graecum with insights on its pharmacological activities. Natural Product Research, 36(8), 2125–2128. https://doi.org/10.1080/14786419.2020.1837817

Amyranti, M., & Nurlatifah, I. (2022). Pembuatan Tepung Umbi Porang (Amorphophallus oncophyllus) Berkualitas Tinggi Sebagai Bahan Baku Ekstraksi Glukomanan. REACTOR: Journal of Research on Chemistry and Engineering, 3(2), 63. https://doi.org/10.52759/reactor.v3i2.62

Annisa, Azhari, Suryati, S., Ishak, I., & ZA, N. (2021). Ekstraksi Galaktomanan Dari Ampas Kelapa. Chemical Engineering Journal Storage (CEJS), 1(3), 10. https://doi.org/10.29103/cejs.v1i3.4726

Aquino, M. S., Senna, J. P., & Mansur, C. R. E. (2025). Extraction, characterization, and evaluation of galactomannan from Barbatimão Verdadeiro as a potential additive for enhanced oil recovery fluids. International Journal of Polymer Analysis and Characterization, 30(1), 68–82. https://doi.org/10.1080/1023666X.2024.2421817

Aryanti, N., & Abidin, Y. (2015). Glucomanan extraxtion from Amorphophallus oncophyllus and Amorphophallus muerelli blume. Metana, 11(01), 21–30. https://doi.org/10.14710/metana.v11i01.13037

Darmawati, D., Bahri, S., & Sosidi, H. (2020). Analisis Kadar Glukomanan Dari Biji Durian ( Durio zeibethinus Murr ) d engan Metode Spektrofotometri pada Berbagai Waktu dan Suhu Hidrolisis. KOVALEN: Jurnal Riset Kimia, 6(2), 158–164. https://doi.org/10.22487/kovalen.2020.v6.i2.11582

Elangovan, S. M., Muthu Kumar, S., Sindhu, V., Mahendiran, B., Muthusamy, S., & Krishnakumar, G. S. (2023). Extraction, characterization and biological activity of Galactomannan rich endosperm of Borassus flabellifer (Linn.) suitable for biofabrication of tissue scaffolds. International Journal of Biological Macromolecules, 251(March), 126397. https://doi.org/10.1016/j.ijbiomac.2023.126397

Flores García, Y., Martín del Campo Solís, M. F., Gómez-Angulo, J. H., Martínez Preciado, A. H., Silva-Jara, J. M., Padilla de la Rosa, J. D., & Escalante-Garcia, Z. Y. (2025). Industrial Applications, Principal Sources, and Extraction of Galactomannans: A Review. Foods, 14(9), 1–30. https://doi.org/10.3390/foods14091587

Helmi, Tamrin, & Hermanto. (2021). Pengaruh suhu dan lama pemanasan terhadap karakteristik organoleptik dan lama simpan kasoami kering. Journal Sains Dan Teknologi Pangan, 6(5), 4312–4324.

Hestina, J., Purba, H. J., Yusuf, E. S., Dabukke, F. B. M., Erwidodo, Azhari, D., & Darwis, V. (2022). Industri Kelapa Indonesia: Kinerja Dan Perspektif Pengembangan Menuju Peningkatan Nilai Tambah Dan Daya Saing. Forum Penelitian Agro Ekonomi, 40(1), 55. https://doi.org/10.21082/fae.v40n1.2022.55-69

Ibrahim, D., Habila, F. H., Adamu, M., Anene, A. I., Adetoro, A., Babayo, S. A., Yahaya, I. H., Idris, S. A., Saidu, A. S., & Akiode, O. K. (2025). Functional and Swelling Properties of Galactomannan Hydrogel Extracted From Neem (Azadiracta Indicia) Stem Bark Obtained From Biu Local Government Area, Borno State, Nigeria. Journal of Applied Sciences and Environmental Management, 29(3), 773–780. https://doi.org/10.4314/jasem.v29i3.12

Ihsan, F., Azzahro, H. U., Anggraini, A., & Alhaviz, A. (2024). EKSTRAKSI POLISAKARIDA MANAN DARI BUNGKIL INTI SAWIT. JURNAL TEKNOLOGI PERTANIAN, 13(2), 94–103. https://doi.org/10.32520/jtp.v13i2.3603

Kouadri, I., Layachi, A., Makhlouf, A., & Satha, H. (2018). Optimization of extraction process and characterization of water-soluble polysaccharide (Galactomannan) from Algerian biomass; Citrullus colocynthis seeds. International Journal of Polymer Analysis and Characterization, 23(4), 362–375. https://doi.org/10.1080/1023666X.2018.1455343

Kumoro, A. C., Retnowati, D. S., Ratnawati, R., & Widiyanti, M. (2019). Effect of Temperature and Reaction Time on the Swelling Power and Solubility of Gadung (Dioscorea hispida Dennst ) Tuber Starch during Heat Moisture Treatment Process. Journal of Physics: Conference Series, 1295(1). https://doi.org/10.1088/1742-6596/1295/1/012062

Mandala, I. G., & Bayas, E. (2004). Xanthan effect on swelling, solubility and viscosity of wheat starch dispersions. Food Hydrocolloids, 18(2), 191–201. https://doi.org/10.1016/S0268-005X(03)00064-X

Muharja, M., Fadilah, S. N., Fadhilah, N., Darmayanti, R. F., Widjaja, A., & Khamil, A. I. (2023). Analisis Tekno-Ekonomi Produksi Gula Reduksi dari Biomassa Ampas Tebu Melalui Hidrolisis Air Subkritis. Journal of Science and Technology, 16(2), 107–116. https://doi.org/10.21107/rekayasa.v16i2.17243

Nasrullah, M., Purwoko, & Sunarti, T. . (2020). Acidic and enzymatic hydrolysis of glucomannan agroindustrial waste Acidic and enzymatic hydrolysis of glucomannan agroindustrial waste. Earth and Environmental Science. https://doi.org/10.1088/1755-1315/472/1/012006

Náthia-Neves, G., Getachew, A. T., & Jacobsen, C. (2025). Enhancing lupin protein extraction and functionality through defatting: Impact of different solvents. Food Chemistry, 495(September). https://doi.org/10.1016/j.foodchem.2025.146378

Ninsix, R. (2012). Pengaruh Ekstraksi Lemak Terhadap Rendemen Dan Karakteristik Tepung Ampas Kelapa Yang Dihasilkan. Jurnal Teknologi Pertanian, 1(1), 1–16. https://doi.org/10.32520/jtp.v1i1.32

Pelealu, K., Pontoh, J., & Suryanto, E. (2011). PENGARUH PEMANASAN TERHADAP AKTIVITAS ANTIOKSIDAN DALAM PEMBUATAN GULA AREN. Chemistry Progress, 4(2), 60–65.

Sholichah, E., Purwono, B., Murdiati, A., Syoufian, A., & Sarifudin, A. (2023). Extraction of glucomannan from porang (Amorphophallus muelleri Blume) with freeze-thaw cycles pre-treatment. Food Science and Technology, 43(1), 1–10. https://doi.org/https://doi.org/10.5327/fst.1423

Suhaela, Noor, A., & Ahmad, A. (2017). EFFECT OF HEATING AND STORAGE TIME LEVELS 5- (Hydroxy Methyl) furan-2- KARBALDEHIDA (HMF) IN HONEY ORIGIN MALLAWA. Marina Chimica Acta, 17(2), 24–31.

Tenda, E. T., Lengkey, H. G., & Kumaunang, J. (1997). Produksi dan Kualitas Buah Tiga Kultivar Kelapa Genjah Dan Tiga Kultivar Kelapa Dalam. Jurnal Penelitian Tanaman Industri, 3(2).

Ye, J., Hua, X., Wang, M., Zhang, W., & Yang, R. (2019). Effect of extraction pH on the yield and physicochemical properties of polysaccharides extracts from peanut sediment of aqueous extraction process. Lwt, 106(September 2018), 137–144. https://doi.org/10.1016/j.lwt.2019.02.049

Zheng, Q., Jia, R. B., Luo, D., Lin, L., Chen, C., & Zhao, M. (2022). The effect of extraction solution pH level on the physicochemical properties and ?-glucosidase inhibitory potential of Fucus vesiculosus polysaccharide. Lwt, 169(May). https://doi.org/10.1016/j.lwt.2022.114028




DOI: https://doi.org/10.14421/biomedich.2026.151.1381-1389

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Copyright (c) 2026 Arief Rakhman Affandi, Sinta Dewi, Iffah Muflihati, Rini Umiyati



Biology, Medicine, & Natural Product Chemistry
ISSN 2089-6514 (paper) - ISSN 2540-9328 (online)
Published by Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity.

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