Haematococcus pluvialis is one of the potent organisms for production of astaxanthin. Up to now, no efficient method has been achieved due to its thick cell wall hindering solvent extraction of astaxanthin. In this study, four different methods, hydrochloric acid pretreatment followed by acetone extraction (HCl-ACE), hexane/isopropanol (6:4, v/v) mixture solvents extraction (HEX-IPA), methanol ...

The fresh-water green unicellular alga Haematococcus pluvialis is known to accumulate astaxanthin under stress conditions. In the present study, transcriptional expression of eight genes involved in astaxanthin biosynthesis exposed to EBR (25 and 50 mg/L) was analyzed using qRT-PCR. The results demonstrated that both 25 and 50 mg/L EBR could increase astaxanthin productivity and the eight carot...

The response of female tabanids to natural attractants was studied in the Monjoros Forest along the Nature Park Kopacki rit in eastern Croatia. Tabanids were caught in canopy traps baited with either aged cow, horse, sheep, or pig urine and also in unbaited traps. Tabanids were collected in a significantly higher numbers in traps baited with natural attractants compared to unbaited traps. The n...

Domestic wastewater contains chemical compounds that can be used as nutrients for microalgae. Removing these from by microalgae might help in reducing the operation cost of management while minimizing cultivation large-scale metabolite production. In this study, domestic collected Indah Water Konsortium (IWK), Kuala Lumpur, Malaysia, was assessed growth media two types microalgae, namely Chlore...

ABSTRAK Pendahuluan: Prevalensi ulser rongga mulut di Indonesia tinggi (96,6%). Astaxanthin yang berasal dari mikroalga hijau Haematococcus pluvialis merupakan salah satu alternatif pengobatan karena adanya sifat antioksidan dan efek anti inflamasinya. Tujuan penelitian menganalisis pengaruh efektivitas pemberian astaxanthin terhadap selisih ukuran diameter hari ke-1 ke-3 pada model ulkus traum...