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120  Articles
1 of 12 pages  |  10  records  |  more records»
A mathematical model consisting of a system of three coupled partial differential equations (PDEs) was proposed to estimate the concentrations of nitrogen, phosphorous and macroalgae biomass in coastal open waters. However, some simplifying assumptions we... see more

Macroalgae are very abundant organisms in Indonesian coastal zone. They comprise 8.6% of the total marine organisms.The aim of the research was to identify macroalgae in Waisai Coast Raja Ampat. The results showed that 38 macroalgae were found in Waisai C... see more

KAROTENOID DARI MAKROALGAE DAN MIKROALGAE: POTENSI KESEHATAN APLIKASI DAN BIOTEKNOLOGI [Carotenoids from Macroalgae and Microalgae: Health Potential, Application and Biotechnology] Helly de Fretes1)*, AB. Susanto2), Budhi Prasetyo1) dan Leenawaty Limantara3) 1) Magister Biologi, Universitas Kristen Satya Wacana, Salatiga 2) Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Tembalang, Semarang 3) Ma Chung Research Center for Photosynthetic Pigments, Universitas Ma Chung, Malang   Diterima 13 Desember 2011 / Disetujui 24 Mei 2012 SUMMARY   Algae, both micro and macroalgae, is one of the largest producers of carotenoids. The major composition of carotenoid on algae are ß-carotene, astaxanthin, luthein, zeaxanthin, cryptoxanthin, and fucoxanthin which have important roles for human health. Carotenoids were produced by several microalgae species such as Dunaliella sallina, Haemotococcus pluvialis, Chlorella pyrenoidosa, Spirulina platensis, Nannnochloropsis oculata, and also from some macroalgae species such as Kappaphycus alvarezii, Sargassum sp, and Caulerpa sp. Carotenoids from algae has been proven as a powerful antioxidant and may prevent some degenerative diseases, cardiovascular, and cancer. Carotenoid also has been applied as a natural dye and dietary supplements. Biotechnology has been developed to increase the production of carotenoids from micro- and macroalgae. The large-scale cultivation of microalgae, either in open or closed system are shown to increase carotenoid production. During cultivation, some stress conditions can be specifically manipulated to optimize carotenoid production from microalgae.   Keywords: application, biotechnology, carotenoid, macroalgae, microalgae SUMMARY   Algae, baik mikro maupun makroalgae, merupakan salah satu penghasil karotenoid terbesar. Komposisi karotenoid penting yang dikandung oleh mikroalgae dan makroalgae terdiri dari ß-karoten, astaxantin, lutein, zeaxantin, kriptoxantin, serta fukoxantin.Seluruhnya memiliki peranan bagi kesehatan manusia. Karotenoid-karotenoid tersebut diproduksi oleh beberapa spesies mikroalga yaitu Dunaliella sallina, Haemotococcus pluvialis, Chlorella pyrenoidosa, Anthrospira platensis, serta Nannnochloropsis oculata, dan juga beberapa spesies makroalga seperti Kappaphycus alvarezii, Sargassum sp, dan Caulerpa sp. Karotenoid dari algae telah terbukti sebagai antioksidan yang kuat serta dapat mencegah beberapa penyakit degeneratif, kardiovaskular, dan kanker. Karotenoid juga telah diaplikasikan sebagai pewarna dan suplemen makanan. Bioteknologi telah dikembangkan dalam rangkai peningkatan produksi karotenoid dari mikroalgae dan makroalgae. Selama kultivasi, beberapa kondisi stres dapat dimanipulasi secara khusus untuk mengoptimalkan produksi karotenoid dari mikroalgae.   Kata kunci: aplikasi, bioteknologi, karotenoid, makroalgae, mikroalgae

KAROTENOID DARI MAKROALGAE DAN MIKROALGAE: POTENSI KESEHATAN APLIKASI DAN BIOTEKNOLOGI [Carotenoids from Macroalgae and Microalgae: Health Potential, Application and Biotechnology] Helly de Fretes1)*, AB. Susanto2), Budhi Prasetyo1) dan Leenawaty Limantar... see more
KAROTENOID DARI MAKROALGAE DAN MIKROALGAE: POTENSI KESEHATAN APLIKASI DAN BIOTEKNOLOGI [Carotenoids from Macroalgae and Microalgae: Health Potential |  Application and Biotechnology] Helly de Fretes1)* |  AB. Susanto2) |  Budhi Prasetyo1) dan Leenawaty Limantara3) 1) Magister Biologi |  Universitas Kristen Satya Wacana |  Salatiga 2) Fakultas Perikanan dan Ilmu Kelautan |  Universitas Diponegoro |  Tembalang |  Semarang 3) Ma Chung Research Center for Photosynthetic Pigments |  Universitas Ma Chung |  Malang   |  Diterima 13 Desember 2011 / Disetujui 24 Mei 2012 SUMMARY   |  Algae |  both micro and macroalgae |  is one of the largest producers of carotenoids. The major composition of carotenoid on algae are ß-carotene |  astaxanthin |  luthein |  zeaxanthin |  cryptoxanthin |  and fucoxanthin which have important roles for human health. Carotenoids were produced by several microalgae species such as Dunaliella sallina |  Haemotococcus pluvialis |  Chlorella pyrenoidosa |  Spirulina platensis |  Nannnochloropsis oculata |  and also from some macroalgae species such as Kappaphycus alvarezii |  Sargassum sp |  and Caulerpa sp. Carotenoids from algae has been proven as a powerful antioxidant and may prevent some degenerative diseases |  cardiovascular |  and cancer. Carotenoid also has been applied as a natural dye and dietary supplements. Biotechnology has been developed to increase the production of carotenoids from micro- and macroalgae. The large-scale cultivation of microalgae |  either in open or closed system are shown to increase carotenoid production. During cultivation |  some stress conditions can be specifically manipulated to optimize carotenoid production from microalgae.   |  Keywords: application |  biotechnology |  carotenoid |  macroalgae |  microalgae SUMMARY   |  Algae |  baik mikro maupun makroalgae |  merupakan salah satu penghasil karotenoid terbesar. Komposisi karotenoid penting yang dikandung oleh mikroalgae dan makroalgae terdiri dari ß-karoten |  astaxantin |  lutein |  zeaxantin |  kriptoxantin |  serta fukoxantin.Seluruhnya memiliki peranan bagi kesehatan manusia. Karotenoid-karotenoid tersebut diproduksi oleh beberapa spesies mikroalga yaitu Dunaliella sallina |  Haemotococcus pluvialis |  Chlorella pyrenoidosa |  Anthrospira platensis |  serta Nannnochloropsis oculata |  dan juga beberapa spesies makroalga seperti Kappaphycus alvarezii |  Sargassum sp |  dan Caulerpa sp. Karotenoid dari algae telah terbukti sebagai antioksidan yang kuat serta dapat mencegah beberapa penyakit degeneratif |  kardiovaskular |  dan kanker. Karotenoid juga telah diaplikasikan sebagai pewarna dan suplemen makanan. Bioteknologi telah dikembangkan dalam rangkai peningkatan produksi karotenoid dari mikroalgae dan makroalgae. Selama kultivasi |  beberapa kondisi stres dapat dimanipulasi secara khusus untuk mengoptimalkan produksi karotenoid dari mikroalgae.   |  Kata kunci: aplikasi |  bioteknologi |  karotenoid |  makroalgae |  mikroalgae
Nowadays microwave radiation is being researched to produce biodiesel from different raw materials due to the many advantages that this technology presents compared to traditional transesterification, such as shorter reaction times and less amount of heat... see more

The purpose of this work is to investigate the influence of n-hexane addition on in situ transesterification of a solid raw material for biodiesel production. Extraction and reaction of macroalgae oil has been performed simultaneously in a batch reactor a... see more

Numerical modeling is an efficient and useful method for understanding the hydrodynamics and water quality responses to nutrient loading changes and other management in estuarine and coastal systems. In this study, the Environmental Fluid Dynamic Code (EF... see more

Abstract. The decline in the quality of coral reef ecosystems is not only caused by human activities but also caused by competition in ecosystems, including competition for space and nutrients. Research on the comparison of coral reefs with macroalgae is ... see more

Physical and chemical factors influence antioxidant activity. One of the physical factors that can affect antioxidant activity is heat. This study aims to determine the phytochemical content and the effect of heating the crude extract of marine macroalgae... see more

Among the freshwater benthic macroalgae found in Brazilian rivers and streams, species of Oedogonium (Chlorophyta) have shown great ability to produce high biomass in several environmental conditions. Their resilience to eutrophic habitats provides an opp... see more

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