Garuda - Garba Rujukan Digital

p-Index From 2020 - 2025

1.259

P-Index

This Author published in this journals

All Journal Jurnal Teknologi Dan Industri Pangan Natural Science: Journal of Science and Technology JOURNAL OF COASTAL DEVELOPMENT ILMU KELAUTAN: Indonesian Journal of Marine Sciences Reaktor Jurnal Natur Indonesia Microbiology Indonesia AL KAUNIYAH Jurnal Matematika & Sains Jurnal Pangan dan Agroindustri agriTECH Indonesian Journal of Cancer Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Indonesian Journal of Chemistry Akuatik: Jurnal Sumberdaya Perairan Jurnal Perikanan Universitas Gadjah Mada Biosaintifika: Journal of Biology & Biology Education Indonesian Journal of Natural Pigments Cermin Dunia Kedokteran Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Indonesian Journal of Cancer Jurnal Buana Pengabdian JURNAL REKAYASA KIMIA & LINGKUNGAN

Leenawaty Limantara

Universitas Pembangunan Jaya

Author-ID : 305498

Religion Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Other

Published : 49 Documents Claim Missing Document

Claim Missing Document

Articles

Title

Analisis Komposisi dan Kandungan Karotenoid Total dan Vitamin A Fraksi Cair dan Padat Minyak Sawit Kasar (CPO) Menggunakan KCKT Detektor PDA Syahputra, M. Rio; Karwur, Ferry F; Limantara, Leenawaty
Jurnal Natur Indonesia Vol 10, No 2 (2008)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

This study was carried out on two phases of Crude Palm Oil (CPO) to determine the total and composition ofcarotenoid and vitamin A content. Total of carotenoid was analyzed using spectrophotometer UV-Vis, and then theresult was calculated by Gross (1991) equation. The vitamin A content was calculated by NAS-NRC equation (1974).The type and composition of both phases of CPO were determined by Choo’s method (1994) by using HPLC withPhoto Diode Array (PDA) detector. The sample was prepared in two methods, with and without saponification. Theresult shows that total carotenoids in liquid and solid phase of CPO are 536 ± 13.2 g/g (liquid), 352 ± 17.7 μg/g(solid) and the vitamin A were 89.4 ± 2.2 RE (liquid), 58.7 ± 3.0 RE (solid), respectively. The carotenoid compositionsof both phases of CPO were dominated by - and -carotenes. The result shows that - and -carotenes preparedby saponification method in liquid phase are 29.03% and 60.88%, and without saponification (direct method) are28.14% and 59.44%. The result for solid phase shows that - and -carotenes by saponification are 25.89% and60.81%, and without saponification (direct method) are 30.00% and 56.92%. The research also shows the advantagesof using HPLC with PDA detector for identification and analysis of type and carotenoid composition.

Fotoproteksi Kurkumin terhadap β-Karoten pada Berbagai Nisbah Molar serta Aktivitas Antioksidannya Natalina, Elly; Rahayu, Puji; Sulistyowati, Sulistyowati; Limantara, Leenawaty
Jurnal Natur Indonesia Vol 12, No 1 (2009)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Curcumin and β-carotene are two kinds of pigments serve as antitumor, anticancer and antioxidant agents. Theantioxidant activity of curcumin is stronger and more stable as compared to β-carotene, so it can protect β-carotene degradation from light and oxygen. Therefore curcumin has higher antioxidant activity as well. Theresearch was conducted by mixing curcumin and β-carotene in several molarity ratios followed by iradiation usingvolpi lamp for 0, 10, 30, 60, and 90 minutes. The result shows that curcumin has photoprotection effect because itcan protect photooxidation of β-carotene. Mixing of curcumin and β-carotene 1:1 was the most stable ratio forprotecting β-carotene.

Efek Beta Karoten dan Agregasi Klorofil Pada Fotostabilitas Klorofil a dalam Pelarut Aseton Costa, Junet. F. da; Karwur, Ferry F; Limantara, Leenawaty
Jurnal Natur Indonesia Vol 11, No 2 (2009)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Chlorophyll as photosynthetic pigment has many benefits to human such as antioxidant, antibacterial, color additive,immunity, and photosensitizer. Concerning to these applications, chlorophyll a will react with oxygen and light andreduce its effectiveness. It is then important to understand the stability of chlorophyll a on oxygen and light.Stability of chlorophyll a in the presence of beta-carotene (1:1) in acetone was studied for various waterconcentrations. Each solution was exposed to red light (ë e” 630 nm) for 0.5; 1.0; 2.5; 5.0; 10; 20; 30; 40; 50; and 60minutes and their spectrum were analysed. When water was added (8.33; 16.67; 25; 33.33; 41.67; 50; 58.33; 66.67;75; and 83.33 percent) to the acetone solution of chlorophyll a, the chlorophylls aggregate, and in the presence ofbeta-carotene, the chlorophyll more stable. The water shifts the chlorophyll a spectrum toward red duringillumination with or without the presence of carotene. The formation of oligomeric chlorophyll a aggregate occurswithin 10-20 minutes after the water was applied. This strategy of aggregating the chlorophylls to dissipateexcess energy captured from light does not support the photostability of chlorophyll as much as beta-carotene.Surprisingly, when beta carotene was mixed with 66.7% and 75.0% of water, the chlorophyll a degraded 5.56% and9.71% respectively. In conclusion, the aggregate form of chlorophyll a and the presence of beta-carotene increasephotostability of chlorophyll a in acetone solution.

Co-Authors A. B. Susanto A.B. SUSANTO AB Susanto Adhiwibawa, Marcelinus A.S. Agus Sabdono Aji Wahyu Budiyanto Amelia Myristi Lolita Antonius Budi Susanto Ayu Nur Aida Bambang Cahyono Budi Prasetyo C Hanny Wijaya Christina Astutiningsih Dece Elisabeth Sahertian Diah Mustika Lukitasari Diah Mustika Lukitasari, Diah Mustika Dian Resita Dian Ridwan Nurdiana Dwi I Prayitmo DWI SUSILANINGSIH EDWIN MAHENDRA Elly Natalina Endrika Widyastuti Ferdiansyah Ferdiansyah Ferry Fredy Karwur Fitriyah Nurhidayah Gabriela Johana Septiany, Gabriela Johana Hana Susanti Maleta Hari Kristopo Helly de Fretes Heriyanto . Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heriyanto Heryanto Heryanto Hong, Khoo Mun Indriatmoko Indriatmoko Jaya Mahar Maligan Junet. F. da Costa Katarina Purnomo Salim Lia Kusmita M. Rio Syahputra Madalena Madalena Maleta, Hana Susanti Maria Ika Putri Soegiarto, Maria Ika Putri Muhammad Diah Khoirul Huda Naely K Wusqy NAELY K. WUSQY Naomi Megananda Mulyadi Naomi Megananda Mulyadi, Naomi Megananda Naurissa Biasini Naurissa Biasini Neltji Herlina Ati Novita Wijayanti Nur Ida Panca Nugrahini Ocky K Radjasa Ocky K. Radjasa Ocky K. Radjasa Ocky Karna Radjasa Prasetyandaru Pirenantyo Prasetyandaru Pirenantyo, Prasetyandaru Pratika Riris Putrianti Pratika Riris Putrianti Puji Rahayu Puji Rahayu Rebecca Christiana Reni Dyanasari Reni Dyanasari Reni Subawati Kusumaningtyas Renny Indrawati Renny Indrawati Renny Indrawati, Renny Reny Pratiwi Rosita Dwi Chandra Rosita Dwi Chandra, Rosita Dwi Salim, Katarina Purnomo Sitepu, Rehmadanta Soenarto Notosoedarmo Soenarto Notosudarmo Sulistyowati Sulistyowati Suryasatriya Trihandaru Susanti Pudji Hastuti Tatas H.P. Brotosudarmo Teti Estiasih Tri Dewanti Widyaningsih Venny Santosa Widya Dwi Rukmi Putri Windu Merdekawati Yundari, Yundari _ Heriyanto

Title Search

Found 3 Documents Search Journal : Jurnal Natur Indonesia

Abstract

Abstract

Abstract

Title

Found 3 Documents
Search
Journal : Jurnal Natur Indonesia