Browsing A - Mathematics and Natural Sciences by Title

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 ...

UJI FITOKIMIA, TOKSISITAS DAN AKTIVITAS ANTIBAKTERI TERHADAP EKSTRAK ETANOL DAUN RAMBUSA (Passiflora foetida L.) TERHADAP BAKTERI Staphylococcus aureus DAN Escherichia coli

Y, Noviyanti; P.Pasaribu, Subur; Tarigan, Daniel (2014-11-01)

Utilization of low rank coal as oxidation catalyst by controllable removal of its carbonaceous component

Mukhamad Nurhadi Jon Efendi Siew Ling Lee Teuku Meurah Indra Mahlia Sheela Chandren Chin Siong Ho Hadi Nur (Journal of the Taiwan Institute of Chemical Engineers, 2015)

Controlled removal of carbonaceous component in low rank coal by sulfonation followed by calcination demonstrated that it is a simple and effective method to utilize this material as catalyst in the oxidation of styrene. ...

Waltherione C and cleomiscosin from Melochia umbellata var. Degrabrata K. (Malvaceae), biosynthetic and chemotaxonomic signiﬁcance

Erwin, Erwin; Noor, Alﬁan; Hariani Soekamto, Nunuk; van Altena, Ian; Maolana Syah, Yana (Biochemical Systematics and Ecology, 2014-03-22)