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Journal : Biota

Repellency of Orange Peel Eco-Enzyme to Reared German Cockroaches (Blattella germanica L.) Robby Jannatan; Resti Rahayu
Biota Vol 9 No 1 (2023): Jurnal Biota 2023
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/Biota.v9i1.12347

Abstract

The German cockroach is a common pest worldwide that has developed insecticide resistance. Eco-enzyme with an aromatic aroma is one alternative way to prevent insecticide resistance development and repel the German cockroach population. This study aims to determine the value and level of repellency of orange peels' eco-enzyme. The method of this study is a Repellency test of four concentrations of eco-enzyme to the reared resistant German cockroach. The repellency level of eco-enzyme at low concentrations (10%) to high concentrations (100%) ranges from high repellent to very high repellent at one hour of observation. The repellency decreases until 48 hours of observation and ranges from medium to high repellent. Eco-enzyme solutions that are eco-friendly, simple to make, and low in toxicity to humans can use as an alternative to synthetic repellents.
Dietary Fiber from Mentawai Taro (Colocasia esculenta var. Mentawai) Ameliorates Diabetic Neuropathy in Alloxan-Induced Mice Safril, Sutri Wulansari; Santoso, Putra; Rahayu, Resti
Biota Vol 12 No 1 (2026): Jurnal Biota 2026
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/biota.v12i1.32143

Abstract

Diabetic neuropathy is a severe complication of diabetes mellitus, and conventional synthetic drugs used for its management are often associated with undesirable side effects. This study evaluated the potential of Mentawai taro (Colocasia esculenta var. Mentawai) corm as a functional food for the management of diabetic neuropathy. Adult male mice were divided into five groups: a control group (healthy mice fed a standard diet), a diabetic group (alloxan-induced diabetic mice fed a standard diet), and three diabetic groups fed diets supplemented with 15% Mentawai taro corm whole flour, fiber, or starch. After 28 days of dietary intervention, blood glucose levels, sensory and motor functions, malondialdehyde (MDA) levels, and cerebellar histopathology were evaluated. The results showed that Mentawai taro corm fiber significantly reduced blood glucose levels (59.5% reduction), accompanied by a positive trend toward improved sensory responses (25% increase) and a marked enhancement of motor function (41.6% increase) in diabetic mice. Additionally, fiber supplementation reduced MDA levels in brain tissue (19.3% reduction) and attenuated Purkinje cell degeneration in the cerebellum (27.3% reduction). In contrast, Mentawai taro corm whole flour and starch exerted minimal protective effects, with starch supplementation improving motor function only. Overall, among the various Mentawai taro corm preparations tested, the fiber extract was the most effective in ameliorating symptoms of diabetic neuropathy.