Browsing A - Mathematics and Natural Sciences by Author "Daniel, Daniel"
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Aktivitas Antioksidan Fraksi Metanol Ekstrak Batang Merung (Coptosapelta tomentosa (Blume) Valenton ex K. Heyne)
Daniel, Daniel (2021-05-31)Penelitian aktivitas antioksidan dari batang merung (Coptosapelta tomentosa (Blume) Valenton ex K. Heyne) telah dilakukan. Ekstraksi dari batang merung dilakukan dengan menggunakan pelarut yaitu metanol, n-heksana ... -
Aktivitas Antioksidan Fraksi Metanol Ekstrak Batang Merung (Coptosapelta tomentosa (Blume) Valenton ex K. Heyne)
Magdaleni, Agustina Rahayu; Daniel, Daniel (Jurnal Kartika Kimia, 2021-05-31)Penelitian aktivitas antioksidan dari batang merung (Coptosapelta tomentosa (Blume) Valenton ex K. Heyne) telah dilakukan. Ekstraksi dari batang merung dilakukan dengan menggunakan pelarut yaitu metanol, n-heksana ... -
Isolation of Active Compounds from Original Plants of East Kalimantan as Cosmetics
Daniel, Daniel (Atlantis Press, 2021-04-10)Phytochemical and antioxidant activity tests were conducted on ethanol extracts of the trunk, flower and leaf of Senggani (Melastoma candidum D.Don). Each sample was macerated with ethanol, and then it was concentrated ... -
SINTESIS MALEIL ASETAT MELALUI REAKSI ESTERIFIKASI ASAM MALAT MENGGUNAKAN PEREAKSI ASETAT ANHIDRAT
Rizqullah, Muhammad Rifky; Daniel, Daniel; Marliana, Eva (JURNAL ATOMIK, 2021-03-31)Research has been carried out on the synthesis of maleil acetate through esterification reactions of malic acid using anhydrate acetate. Esterification of malic acid was carried out with a ratio of anhydrate acetate 1:2 ... -
UJI FITOKIMIA DAN UJI AKTIVITAS ANTIOKSIDAN EKSTRAK FRAKSI n-HEKSANA, ETIL ASETAT DAN ETANOL SISA DARI DAUN SUNGKAI (Peronema canescens Jack.) DENGAN METODE DPPH
Pindan, Neli Peni; Daniel, Daniel; Saleh, Chairul; Magdeleni, Agustina Rahayu (2021-03-31)Research on phytochemical test and antioxidant activity on sungkai leaf extract (Peronema Canescens Jack.) using DPPH (1,1-diphenyl-2-picrylhydrazyl). Phytochemical test result showed that secondary metabolites in ...