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Sri Wahyuni

Publications (3)

Response Surface Method in Evaluating the Extrusion Effects on Molecular Degradation and Physical Properties of Sago Starch

Ansharullah Ansharullah, Sri Wahyuni, . Tamrin & Muhammad Natsir · Journal of Scientific Research and Reports · 2020

This study was aimed to measure the effect of extrusion on the molecular degradation and physical characteristics of the sago starch by employing response surface method. The starch was extruded in a twin screw extruder with moisture contents of 25, 32.5, and 40%; melt temperatur...

Open access Research Article 10.9734/jsrr/2020/v26i830292

Optimization in Preparing Sago Based Maltodextrin in a Twin Screw Extruder

Ansharullah Ansharullah, La Rianda, Sri Wahyuni & . Tamrin · Journal of Applied Life Sciences International · 2020

Maltodextrins were prepared from sago starch in a twin screw extruder.  A response surface design was used in the extrusion, which included the variations in the α-amylase (Termamyl 120L)  concentrations of 12-24 g/kg dry starch, the moisture contents of 45-55%, and the screw spe...

Open access Research Article 10.9734/jalsi/2020/v23i930186

Repellent Activity of Piper spp. Leaves Extracts on Rice Ear Bugs (Leptocorisa oratorius Fabricius) and the Characters of Its Volatile Compounds

Laurentius Hartanto Nugroho, Rarastoety Pratiwi, R. C. Hidayat Soesilohadi, Efrida Ratnasari Subin, Sri Wahyuni, . Jekli, Yustina Sri Hartini & Intani Quarta Lailaty · Annual Research & Review in Biology · 2020

Rice ear bug (Leptocorisa oratorius Fabricius) is still classified as the top of five pests that cause the most losses in rice farming productivity. The attack causes the grain to become empty resulted in reducing the yield of grain up to 40% even to 100%. Betel plants (Genus Pip...

Open access Research Article 10.9734/arrb/2020/v35i930269