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Journal : SAINS DAN MATEMATIKA

Geographical classification of Java Tea (Orthosiphon stamineus) from Java Island by FTIR Spectroscopy Combined with Canonical Variate Analysis Mohamad Rafi; Edy Djauhari Purwakusumah; Taopik Ridwan; Baba Barus; Atang Sutandi; Latifah Kosim Darusman
JURNAL SAINS DAN MATEMATIKA Volume 23 Issue 1 Year 2015
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

FTIR spectroscopy combined with canonical variate analysis was used for differentiation of java tea (Orthosiphon stamineus) according to their geographical origin. FTIR spectra of all java tea samples were acquired in the mid infrared region (wavenumber range 4000-400 cm-1). Preprocessing signal of FTIR spectra has been carried out prior to canonical variate analysis by standard normal variate. Combination of FTIR spectra in the region 1800-900 cm-1with canonical variate analysis has the power to differentiate java tea samples in terms of geographical origin. The developed method could be used for identification of geographical origin of java tea based on the samples used in this study.
Co-Authors A Akbar Achmad, Alfredian Ade Mirza Roslinawati Adi Jaya, Adi Afan Ray Mahardika Ake Wihadanto Akhmad Fauzi Alamin Yang First Alfin Murtadho Aminah, Mimin Andhi Trisnaputra Andrea Emma Pravitasari, Andrea Emma Andri Yushar Andria Ardhy Firdian Arya Hadi Dharmawan Asnelly Ridha Daulay Atang Sutandi Azis, Muh. Ikhsan Bakri, Subhan Bambang Hendro Trisasongko Bambang Juanda Bambang P. Noorachmat Bambang Pramudya Bobby A. Palem Boedi Tjahjono Bratakusumah, Deddy S. Budi Mulyanto Budi Nugroho Budi Prasetyo Cahyana, Destika Chiharu Hongo, Chiharu Corry Nurmala Danang Pramudita, Danang Darda Effendi Darmawan Darmawan Deddy S. Bratakusumah Deddy S. Bratakusumah Denis Muba Pandapotan Simanihuruk Desi Nadalia Dessy Arianti Destika Cahyana Diar Shiddiq Didit Okta Pribadi Didit Okta Pribadi Djuanda, Bambang Djuara P Lubis DP Tejo Baskoro, DP Tejo Drajat Martianto Dwi Maryanto, Dwi Dwi Putro Tejo Baskoro Dwi Ratnawati Christina Dyah Ita Mardianingsih Dyah R Panuju Dyah R. Panuju Dyah R. Panuju Dyah Retno Panuju Edy Djauhari Purwakusumah Eka Intan Kumala Putri Emilia Syafitri Endriatmo Soetarto Enni Dwi Wahjunie Erliza Noor Ernan Rustiadi Euis Sunarti Faris Rahmadian Fauzi, Firman Febrianti, Nur Fitri Insani Fredian Tonny Nasdian Fredinan Yulianda Gatot Yulianto Gersony Miri Hana Indriana Hans Moravia Hari Agung Hari Agung Adrianto Hari Wijayanto Harisman Edi Harmes Harmes harmes harmes Hartono, Arif Herianto Hermanto Siregar Hidayah, Nursantri Hilda Nurul Hidayati Hongo , Chiharu Imas Sukaesih Sitanggang Indraprahasta, Galuh Syahbana Irzaman, Irzaman Iskandar Iskandar Iswandi Umar Iwan Kurniawan Khursatul Munibah Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Kusumastuti, Ayu Candra Kusumawati, Balkis Lala M Kolopaking Laode Syamsul Iman Latifah Kosim Darusman M Habibi Yadi Irawanata M Munawir Mahmud A. Raimadoya Mahmud A. Raimadoya Mazlan Mira Harimurti Mohamad Rafi Muhamad Firdaus Muhammad Ardiansyah Muhammad Ardiansyah Muhammad Firdaus Muhammad Hikmat Muhammad Munawir Syarif Muhammad Mu’min Fahimuddin Muhammad Zulfikar Muhammad, Almawardi Nadia Shalehah Nandi Kosmaryandi NINA WIDIANA DAROJATI Nina Widiana Darojati Nindya Ayu Wardani Nur Febrianti Nur Febrianti Purwanto, Moh Yanuar Jarwadi Purwono Purwono Puspita, Gita Qalbi, Andria Harfani Rahmi Fajarini Reni Kusumo Tejo Reni Kusumo Tejo Reza Hanjaya Ricky Ricky Ricky, Ricky Rifyan Ruman Rilus Kinseng Rini Ariani Amir Rizaldi Boer Romiyanto Romiyanto Sabila, Salma Sabri Effendy Setia Hadi Sigit, Gunardi Siska Amelia Sitanggang, Imas S. Siti Faizah Zauhairah Siti Maesaroh Siti Nurisyah Soekmana Soma Sri Mulatsih Subhan Bakri Suci Sri Utami Sutjipto Sukiptiyah Sukiptiyah Sukiptiyah Sukiptiyah Sumardani Kusmajaya Suria Darma Tarigan Suryadi Suryadi Suryadi Suryadi Suwardi Suwardi Syahbana, Galuh Syaiful Anwar Syamsul Arifin Taopik Ridwan Tb Iwan Mulyawan Tenda, Edwin Tivianton, Tommy Andryan Tommi Tommi Tommi Tommi, Tommi Tommi, Tommi Tono, Tono Tuni, Muhd. Siraz Uciningsih, Winda Ugeng Wijanarko Umar Mansyur Untung Sudadi Vincentius P Siregar Wahyu Iskandar Werenfridus Taena Widada, Rasyid Widiatmaka Yani Nurhadryani Yiyi Sulaeman Yoyoh Indaryanti Yuda Pringgo Bayusukmara Yunito, Muhammad Rahmanda Yuri Ardhya Stanny Yusuf, Sri Malahayati Zluyan Firdaus Afif