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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 Rafi, Mohamad; Purwakusumah, Edy Djauhari; Ridwan, Taopik; Barus, Baba; Sutandi, Atang; Darusman, Latifah Kosim
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 Akhmad Fauzi Andria, Andri Yushar Arya Hadi Dharmawan Atang Sutandi Bakri, Subhan Bambang H. Trisasongko Bambang Juanda Bambang Pramudya Bayusukmara, Yuda Pringgo Boedi Tjahjono, Boedi Budi Mulyanto Danang Pramudita, Danang Darojati, Nina Widiana Deddy S. Bratakusumah Dessy Arianti, Dessy Diar Shiddiq, Diar Didit Okta Pribadi DP Tejo Baskoro, DP Tejo Drajat Martianto Dwi Maryanto, Dwi Dwi Putro Tejo Baskoro Dwi Ratnawati Christina, Dwi Ratnawati Dyah R. Panuju Dyah Retno Panuju Edi, Harisman Edy Djauhari Purwakusumah Ernan Rustiadi Euis Sunarti Fahimuddin, Muhammad Mu?min Faris Rahmadian Febrianti, Nur Febrianti, Nur Firdian, Ardhy Fredian Tonny Nasdian, Fredian Tonny Gersony Miri, Gersony Hana Indriana Hans Moravia Hari Wijayanto Hendra Setiawan Hidayah, Nursantri Hikmat, Muhammad Hilda Nurul Hidayati, Hilda Nurul Indaryanti, Yoyoh Irzaman Irzaman Iskandar Iskandar Kukuh Murtilaksono Kusumastuti, Ayu Candra Lala M. Kolopaking Lala Mulyowibowo Kolopaking Laode Syamsul Iman, Laode Syamsul LATIFAH KOSIM DARUSMAN Mahmud A. Raimadoya Mardianingsih, Dyah Ita Mohamad Rafi Muhamad Firdaus Muhammad Ardiansyah Muhammad Munawir Syarif, Muhammad Munawir Muhammad Zulfikar Munawir, M Noer Azam Achsani Nurmala, Corry Rahmi Fajarini, Rahmi Rilus A Kinseng Rizaldi Boer Romiyanto, Romiyanto Roslinawati, Ade Mirza Ruman, Rifyan Sabri Effendy, Sabri Setia Hadi Siti Maesaroh Soekmana Soma Sri Mulatsih Suwardi Suwardi Taopik Ridwan Tb Iwan Mulyawan, Tb Iwan Tejo, Reni Kusumo Tommi Tommi, Tommi Tono, Tono Tuni, Muhd. Siraz Umar Mansyur Umar, Iswandi Untung Sudadi, Untung Werenfridus Taena Widiatmaka . Widiatmaka Widiatmaka Wihadanto, Ake Zluyan Firdaus Afif, Zluyan Firdaus