Melola Discovery

← Melola Discovery

Jurnal SINTA 1

Cassava Pulp Hydrolysis under Microwave Irradiation with Oxalic Acid Catalyst for Ethanol Production

Journal of Mathematical and Fundamental Sciences · Vol. 46 No. 2 (2014) · hlm. 125–139

DOI
10.5614/j.math.fund.sci.2014.46.2.2
ISSN
2338-5510, 2337-5760
Terbit
2014-07-01
Penerbit
Directorate for Research and Innovation (DRI) ITB
Bahasa
eng

Abstrak

Microwave irradiation is an alternative method of starch hydrolysis that offers a rapid process. The aim of this research was to improve microwave-assisted hydrolysis of cassava pulp by using oxalic acid as a catalyst. Suspension of cassava pulp in 0.5% oxalic acid (1 g/20 mL) was subjected to microwave irradiation at 140-230 °C for 5 minutes, with 4 minutes of pre-heating. One gram of fractured activated carbon made of coconut shell was added into a number of suspensions that were subjected to the same conditions of microwave irradiation. The soluble fraction of the hydrolysates was analyzed for its total soluble solids, malto-oligomer distribution, glucose content, pH value, and formation of brown compounds. The effects of the combined severity parameter at a substrate concentration of 5-12.5% on the glucose yield were also evaluated. The highest glucose yield (78% of dry matter) was obtained after hydrolysis at 180 °C without activated carbon addition. Heating above 180 °C reduced the glucose yield and increased the pH and the formation of brown compounds. The use of activated carbon in microwave-assisted acid hydrolysis of cassava pulp reduced the glucose yield, but suppressed the formation of brown compounds. The highest glucose yield (70-80% of dry matter) was attained at a severity parameter of 1.3-1.5.

Kata kunci

Jaringan kolaborasi para penulis

24 penulis · 113 tautan kepenulisan bersama · 27 lintas organisasi

Arahkan kursor atau ketuk sebuah nama untuk menyorot rekan penulisnya. Klik dua kali untuk membuka halaman penulis.

  • Indonesian Institute of Sciences
  • Kyoto University
  • IPB University
  • Universitas Gadjah Mada
  • Universitas Sumatera Utara
  • Afiliasi tidak diketahui
  • Organisasi berbeda
  • Organisasi sama
  • Afiliasi tidak diketahui
  • Garis lebih tebal = lebih banyak artikel bersama · lingkaran lebih besar = lebih banyak artikel
Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Widya FatriasariAfiliasi tidak diketahui3
Lucky RisantoIndonesian Institute of Sciences2
Sita Heris AnitaIndonesian Institute of Sciences2
Raden Permana Budi LaksanaIndonesian Institute of Sciences2
Fahriya Puspita SariIndonesian Institute of Sciences2
Faizatul FalahIndonesian Institute of Sciences2
Danang Sudarwoko AdiIndonesian Institute of Sciences1
Wahyu DwiantoIndonesian Institute of Sciences1
Ika WahyuniIndonesian Institute of Sciences1
Sri RulliatyAfiliasi tidak diketahui1
Takashi WatanabeKyoto University1
Kharisma Panji RamadhanIndonesian Institute of Sciences1
Apri Heri IswantoUniversitas Sumatera Utara1
Riksfardini Annisa ErmawarIndonesian Institute of Sciences1
Muhammad GhozaliIndonesian Institute of Sciences1
Fajar Nur HamzahIPB University1
Bagas Ikhasan PratomoUniversitas Gadjah Mada1
Triyani FajriutamiIndonesian Institute of Sciences1
Ina WinarniAfiliasi tidak diketahui1
Nissa Nurfajrin SolihatIndonesian Institute of Sciences1
Fitria FitriaIndonesian Institute of Sciences1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jmfs/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Cassava Pulp Hydrolysis under Microwave Irradiation with Oxalic Acid Catalyst for Ethanol Production</dc:title>
	<dc:creator>Hermiati, Euis</dc:creator>
	<dc:creator>Tsubaki, Shuntaro</dc:creator>
	<dc:creator>Azuma, Jun-ichi</dc:creator>
	<dc:subject xml:lang="en-US">activated  carbon</dc:subject>
	<dc:subject xml:lang="en-US">cassava  pulp</dc:subject>
	<dc:subject xml:lang="en-US">glucose</dc:subject>
	<dc:subject xml:lang="en-US">hydrolysis</dc:subject>
	<dc:subject xml:lang="en-US">microwave</dc:subject>
	<dc:subject xml:lang="en-US">oxalic acid</dc:subject>
	<dc:subject xml:lang="en-US">severity parameter.</dc:subject>
	<dc:description xml:lang="en-US">Microwave irradiation is an alternative method of starch hydrolysis that offers a rapid process. The aim of this research was to improve microwave-assisted hydrolysis of cassava pulp by using oxalic acid as a catalyst. Suspension of cassava pulp in 0.5% oxalic acid (1 g/20 mL) was subjected to microwave irradiation at 140-230 °C for 5 minutes, with 4 minutes of pre-heating. One gram of fractured activated carbon made of coconut shell was added into a number of suspensions that were subjected to the same conditions of microwave irradiation. The soluble fraction of the hydrolysates was analyzed for its total soluble solids, malto-oligomer distribution, glucose content, pH value, and formation of brown compounds. The effects of the combined severity parameter at a substrate concentration of 5-12.5% on the glucose yield were also evaluated. The highest glucose yield (78% of dry matter) was obtained after hydrolysis at 180 °C without activated carbon addition. Heating above 180 °C reduced the glucose yield and increased the pH and the formation of brown compounds. The use of activated carbon in microwave-assisted acid hydrolysis of cassava pulp reduced the glucose yield, but suppressed the formation of brown compounds. The highest glucose yield (70-80% of dry matter) was attained at a severity parameter of 1.3-1.5.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Innovation (DRI) ITB</dc:publisher>
	<dc:date>2014-07-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journals.itb.ac.id/index.php/jmfs/article/view/822</dc:identifier>
	<dc:identifier>10.5614/j.math.fund.sci.2014.46.2.2</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Mathematical and Fundamental Sciences; Vol. 46 No. 2 (2014); 125-139</dc:source>
	<dc:source>2338-5510</dc:source>
	<dc:source>2337-5760</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jmfs/article/view/822/500</dc:relation>
</oai_dc:dc>