{"id":34322,"date":"2018-07-23T05:54:49","date_gmt":"2018-07-23T05:54:49","guid":{"rendered":"https:\/\/www.its.ac.id\/news\/?p=34322"},"modified":"2018-07-23T05:54:49","modified_gmt":"2018-07-23T05:54:49","slug":"mahasiswa-ciptakan-bioetanol-dari-limbah-aren","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/","title":{"rendered":"Mahasiswa ITS Ciptakan Bioetanol dari Limbah Aren"},"content":{"rendered":"<figure id=\"attachment_34323\" aria-describedby=\"caption-attachment-34323\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-34323\" src=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19.jpeg\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19.jpeg 1280w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19-300x169.jpeg 300w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19-768x432.jpeg 768w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19-1024x576.jpeg 1024w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.35.19-355x200.jpeg 355w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><figcaption id=\"caption-attachment-34323\" class=\"wp-caption-text\">(Dari kiri ke kanan) Richie Andyllo Stefanus, Anastasia Sandra Dewi, dan Maria Amelia Sandra.<\/figcaption><\/figure>\n<blockquote><p><strong>Kampus ITS, ITS News &#8211;<\/strong> Limbah hasil industri yang tidak dimanfaatkan lebih lanjut akan menjadi sampah yang menimbulkan kerusakan lingkungan. Khususnya limbah padat pada industri tepung aren. Namun, limbah aren tersebut telah diteliti oleh tim mahasiswa dari Departemen Teknik Kimia Institut Teknologi Sepuluh Nopember (ITS) Surabaya, ternyata mengandung zat penyusun bioetanol (bahan bakar).<\/p><\/blockquote>\n<p>Tim tersebut terdiri dari Anastasia Sandra Dewi, Richie Andyllo Stefanus, dan Maria Amelia Sandra di bawah bimbingan Prof Dr Ir Tri Widjaja MEng. Menurut tim, limbah padat aren mengandung bahan yang berlignoselulosa (lignin, selulosa, dan hemiselulosa). Zat selulosa dan hemiselulosa ini dapat dihidrolisa atau dipecah molekul airnya menjadi gula reduksi kemudian difermentasi menjadi bioetanol.<\/p>\n<p>Namun, kandungan zat lignin yang cukup tinggi telah membungkus kaku keberadaan selulosa dan hemiselulosa, sehingga diperlukan proses pretreatment (perlakuan pendahuluan). Menurut ketua tim, Anastasia Sandra Dewi, proses pretreatment berguna untuk melarutkan lignin agar zat selulosa dan hemiselulosa dapat dipakai secara maksimal. \u201cPada proses ini, kami menggunakan kombinasi pretreatment asam (asam sulfat 5 persen, red) dan organoslov (etanol 51,29 persen, red),\u201d jelas Sandra.<\/p>\n<p>Lanjut Sandra lagi, seusai melalui tahap pretreatment, penelitian dilanjutkan dengan tahap hidrolisa enzim. Hidrolisa enzim berguna untuk menghidrolisa selulosa dan hemiselulosa yang diperoleh dari proses pretreatment menjadi gula reduksi, yakni glukosa dan xylosa. \u201cKami menggunakan dua enzim yaitu enzim selulase dan xylanase serta surfaktan tween 80 untuk melakukan proses ini,\u201d imbuh mahasiswi asal Jakarta ini.<\/p>\n<figure id=\"attachment_34325\" aria-describedby=\"caption-attachment-34325\" style=\"width: 1040px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-34325\" src=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.28.jpeg\" alt=\"\" width=\"1040\" height=\"780\" \/><figcaption id=\"caption-attachment-34325\" class=\"wp-caption-text\">Maria Amelia Sandra sedang melakukan pengujian dengan jamur.<\/figcaption><\/figure>\n<p>Tak hanya itu, Sandra menuturkan, setelah mendapatkan gula reduksi, terdapat tahap terakhir yakni proses fermentasi. Melalui fermentasi ini, tim menggunakan jamur saccharomyces cerivisae yang berguna untuk mengkonversi atau mengubah gula reduksi menjadi bioetanol. \u201cProses ini dilakukan di inkubator shaker selama 72 jam pada suhu 35 derajat celcius agar memperoleh hasil yang maksimal,\u2019 terangnya lebih lanjut.<\/p>\n<p>Sandra mengaku, karya penelitian Program Kreativitas Mahasiswa (PKM) ini membutuhkan total waktu sekitar delapan hari, dihitung tanpa analisa dengan perolehan 0,42 persentase volume per volume (0,42 persen v\/v) bioetanol dari 50 gram limbah padat aren. \u201cItu hanya skala laboratorium, untuk skala besar bisa menghasilkan beberapa liter bioetanol,\u201d urainya.<\/p>\n<p>Ditanya soal harapan ke depan, mahasiswa kelahiran 1997 ini menginginkan hasil karya penelitiannya ini bisa dikembangkan lagi dan diaplikasikan dalam skala yang lebih besar oleh pihak industri. Juga, limbah padat aren yang telah menumpuk dan menjadi sampah lingkungan itu bisa disegerakan untuk dimanfaatkan kembali oleh pihak industri menjadi bahan bakar alternatif dan ramah lingkungan (bioetanol). (rio\/Humas ITS)<\/p>\n<figure id=\"attachment_34324\" aria-describedby=\"caption-attachment-34324\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-full wp-image-34324\" src=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40.jpeg\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40.jpeg 1280w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40-300x169.jpeg 300w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40-768x432.jpeg 768w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40-1024x576.jpeg 1024w, https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.40-355x200.jpeg 355w\" sizes=\"(max-width: 1280px) 100vw, 1280px\" \/><figcaption id=\"caption-attachment-34324\" class=\"wp-caption-text\">Tim saat melakukan pengujian di inkubator.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Kampus ITS, ITS News &#8211; Limbah hasil industri yang tidak dimanfaatkan lebih lanjut akan menjadi sampah yang menimbulkan kerusakan lingkungan. Khususnya limbah padat pada industri tepung aren. Namun, limbah aren tersebut telah diteliti oleh tim mahasiswa dari Departemen Teknik Kimia Institut Teknologi Sepuluh Nopember (ITS) Surabaya, ternyata mengandung zat penyusun bioetanol (bahan bakar). Tim tersebut [&hellip;]<\/p>\n","protected":false},"author":33,"featured_media":34325,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14,1],"tags":[],"class_list":["post-34322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita-utama","category-riset-dan-teknologi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mahasiswa ITS Ciptakan Bioetanol dari Limbah Aren - ITS News<\/title>\n<meta name=\"description\" content=\"Limbah aren yang diteliti mahasiswa dari Departemen Teknik Kimia ITS Surabaya ternyata mengandung zat penyusun bioetanol.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mahasiswa ITS Ciptakan Bioetanol dari Limbah Aren - ITS News\" \/>\n<meta property=\"og:description\" content=\"Limbah aren yang diteliti mahasiswa dari Departemen Teknik Kimia ITS Surabaya ternyata mengandung zat penyusun bioetanol.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\" \/>\n<meta property=\"og:site_name\" content=\"ITS News\" \/>\n<meta property=\"article:published_time\" content=\"2018-07-23T05:54:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.28-e1532325138779.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1039\" \/>\n\t<meta property=\"og:image:height\" content=\"649\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"itsmis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"itsmis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\"},\"author\":{\"name\":\"itsmis\",\"@id\":\"https:\/\/www.its.ac.id\/news\/#\/schema\/person\/f963f1330a6bb10ee3d4ef8ad13b923e\"},\"headline\":\"Mahasiswa ITS Ciptakan Bioetanol dari Limbah Aren\",\"datePublished\":\"2018-07-23T05:54:49+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\"},\"wordCount\":433,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.its.ac.id\/news\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.its.ac.id\/news\/wp-content\/uploads\/sites\/2\/2018\/07\/WhatsApp-Image-2018-07-23-at-11.36.28-e1532325138779.jpeg\",\"articleSection\":[\"Berita Utama\",\"Riset dan Teknologi\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\",\"url\":\"https:\/\/www.its.ac.id\/news\/mahasiswa-ciptakan-bioetanol-dari-limbah-aren\/\",\"name\":\"Mahasiswa ITS Ciptakan Bioetanol dari Limbah Aren - 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