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Journal : Jurnal Teknologi Pertanian

Extraction and Characterization of Endogenous Polygalacturonase Enzyme in Cocoa Pulp Gandaputra, G. P.; Harijono, Harijono; Susanto, Tri; Kumalaningsih, Sri; Aulanni'am, Aulanni'am
Jurnal Teknologi Pertanian Vol 8, No 1 (2007)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Endogenous polygalacturonase (PG) enzymes in cocoa pulp have not been studied yet. The research, aimed to extract and characterize endogenous PG enzymes in cocoa pulp, was carried in two steps: (i) extraction of endogenous PG enzyme and (ii) enzyme characterization i.e. enzyme activity assay and determination of enzymatic kinetics (Km and Vmax), molecular weight (MW) by electrophoresis, and determination of its optimum temperature and pH. The results showed that the characteristics of endogenous PG in cocoa pulp were as followed: the relative activity of 4,58± 0,06 Units/ml,  Vmax of 6,69 Units/ml, Km of 0,37 %, MW was 32,84 and 63,58 kDa, and the combination of temperature and pH optimum were 42,5oC and 4,6. Key words: endogenous polygalacturonase (PG), cocoa pulp
Co-Authors A. Harijono Anak Agung Made Dewi Anggreni Anak Agung Putu Agung Suryawan Wiranatha Anak Agung Sagung Inten Mahasari Putri Anak Agung Sagung Mirah Mahadewi Anggreni, Ni Made Dian Antonius Solo Aulanni'am, Aulanni'am Bambang Kartika DEWA AYU ANOM YUARINI Diana Puspitaningtyas Dimas Anggi Ananta Enjelitha Girsang Esra Palenta Sinaga Gede Agus Ariefta Gek Ulan Sukma Gusti Ayu Kadek Diah Puspawati Gusti Putu Agus Darmataba I Dewa Putu Rega Elyana I Gede Krisna Putra Pratama I Gede Oka Harta Adinata I Gede Rusli Supariatna I Gst. Ayu Ananda Dama Sastri I Gusti Ayu Agung Putri Utami I Gusti Ayu Ekawati I Gusti Ayu Krisna Dewi I Gusti Ayu Lani Triani I Gusti Ayu Meia Dewi I Kadek Aditya Wirajaya I Kadek Widhiana Putra I Ketut Dio Prasetya I Made Anom Sutrisna Wijaya I Made Kartana I Made Mas Oka Hendrawan I Nengah Kencana Putra I Putu Lingsan Pratyaksa I Putu Suparthana I Wayan Adi Wagestu I Wayan Arnata I Wayan Eko Fridayana I Wayan Ferry Artha Yoga I Wayan Gde Angga Prasetya I.W.G.S. Yoga Ida Bagus Gede Awidyanata Ida Bagus Wayan Gunam Kadek Mei Ahadianti Komang Aris Bintang Permana Lianatus Sholeha Livia Pratiwi Luh Putu Ayu Sumantining Luh Putu Trisna Darmayanti Luh Putu Wrasiati Lutfi Suhendra Misbach Baihaqi Zen Ni Kadek Wiji Astuti Ni Kadek Yeni Dwipayanti Ni Made Mega Suasti Rahayu Ni Made Ria Oka Ni Made Wartini Ni Nyoman Desi Trisna Dewi Ni Putu Suwariani Ni Wayan Sukmayanti Ni Wayan Titin Kartika Sari NiMade Wartini Novi Dwiningrum NYOMAN SEMADI ANTARA Praycelia Marissa Miranda Putu Agung Sujud Rama Krishna Putu Agus Nadiarta Putu Ayu Sucitawati Putu Mutia Septiyaningsih Putu Timur Ina Putu Widya Sena Repika Sepitri Br Barus Reren Rahmadhani Sadyasmara, Cokorda Anom Bayu Sri Kumalaningsih Sri Mulyani Sutardi Sutardi Tia Larasati Tri Susanto W. Angga Pranayasa Yudisthira Dharma Bhusana Dasa