Environmental Science
Optimised extraction of antioxidant components from Calophyllum inophyllum L. seeds using response surface methodology

L. Fitriyana; M.D. Supardan; Y. Aisyah; Irfan .

Articles in Press, Accepted Manuscript, Available Online from 14 February 2024


  BACKGROUND AND OBJECTIVES: Calophyllum inophyllum (C. inophyllum), or Nyamplung, seeds contain various active compounds. Using C. inophyllum seeds as a source of flavonoids for natural antioxidants can increase their economic value and provide alternative compounds for cosmetics, including lotions. This ...  Read More

Environmental Science
Physicochemical characterization of biodegradable polymer polyhydroxybutyrate from halophilic bacterium local strain Halomonas elongata

W.O.S. Rizki; E. Ratnaningsih; D.G.T. Andini; S. Komariah; A.T. Simbara; R. Hertadi

Articles in Press, Accepted Manuscript, Available Online from 13 February 2024


  BACKGROUND AND OBJECTIVES: Petroleum-based plastics produce tremendous amounts of plastic waste every year, which contributes to environmental problems. Biological polymers, such as polyhydroxybutyrate, have caught attention as an ecofriendly substitute to petroleum-based plastics. The present study ...  Read More

Environmental Science
Fermented palm kernel waste with different sugars as substrate for black soldier fly larvae

R.A. Nugroho; R. Aryani; E.H. Hardi; H. Manurung; R. Rudianto; W.N. Jati

Volume 10, Issue 2 , April 2024, , Pages 503-516


  BACKGROUND AND OBJECTIVES: The palm industry generates several waste products. Some of this waste, such as palm kernel meal, has not been fully optimized for processing. Therefore, this study sought to determine whether fermented palm kernel meal with various types of sugar (fructose, glucose, maltose, ...  Read More

Environmental Science
Bacterial reduction in river water using nanocellulose membrane from pineapple biomass with ferrous-ferric oxide reinforcement

D. Syukri; H. Suryanto; F. Kurniawan; P.D. Hari; R.M. Fiana; . Rini

Volume 10, Issue 2 , April 2024, , Pages 643-656


  BACKGROUND AND OBJECTIVES: Constructing a nanocellulose membrane from biomass waste can lessen harmful environmental effects owing to its ability to absorb chemical and microbiological impurities. Therefore, nanocellulose membranes with magnetic properties were developed as a powerful apparatus for reducing ...  Read More

Environmental Science
Role of Cylindrospermopsis sp. in vertical nitrogen changes observed in tropical oxidation wastewater treatment ponds

M. Srichomphu; O. Phewnil; T. Pattamapitoon; Ratcha Chaichana; K. Chunkao; W. Wararam; N. Dampin; P. Maskulrath

Volume 10, Issue 1 , January 2024, , Pages 287-300


  BACKGROUND AND OBJECTIVES: As a producer within the ecological food chain, phytoplankton provides the base energy and oxygen to the environment through photosynthesis and higher tropic levels. These benefits can be applied in five consecutive nature-by-nature oxidation ponds for the treatment of community ...  Read More

Environmental Science
Prediction models of iron level in beef muscle tissue toward ecological well-being

K. Narozhnykh

Volume 9, Issue 4 , October 2023, , Pages 833-850


  BACKGROUND AND OBJECTIVES: Elemental status is associated with the biochemical processes occurring in the body. Beef, consumed worldwide, is an excellent source of iron in terms of quantity and bioavailability, providing up to 18 percent of the daily requirement. The level of iron in muscle tissue affects ...  Read More

Environmental Science
Bioprocessing of organic wastes from poultry and bovine slaughterhouses as food substrate for Hermetia illucens larval development

A.P. Luperdi; S.S. Flores-Calla; X.J. Barriga; V. Rivera; I. Salazar; P.L. Manrique; J.E. Reátegui

Volume 9, Issue 1 , January 2023, , Pages 31-42


  BACKGROUND AND OBJECTIVES: In the meat industry, inefficient management of organic waste exists, therefore the study aims to evaluate different bovine and poultry organic residues as food substrates during larval development of the black soldier fly, such as a sustainable alternative to obtain high protein ...  Read More

Environmental Science
Microalgae diversity in several different sub-habitats

S. Arsad; Y.W. Mulasari; N.Y. Sari; E.D. Lusiana; Y. Risjani; M. Musa; M. Mahmudi; F.S. Prasetiya; L.A. Sari

Volume 8, Issue 4 , October 2022, , Pages 561-574


  BACKGROUND AND OBJECTIVES: Biodiversity is the variety of life that exists on Earth, including all the organisms, species, and populations that come together in a complex manner to form communities and ecosystems. This study aimed to assess the diversity of microalgae in several different sub-habitats ...  Read More

Environmental Science
Agricultural waste management generated by agro-based industries using biotechnology tools

D. Sivakumar; P. Srikanth; P. W. Ramteke; J. Nouri

Volume 8, Issue 2 , April 2022, , Pages 281-296


  The amount of agricultural waste generated by agro-based industries such as palm oil, rubber, and wood processing plants have more than tripled. Selangor, Perak, and Johor account for 65.7 percent of the total number of recognised pollution sources in the manufacturing and agro-based sectors. Livestock ...  Read More

Environmental Science
Bio-oil production by pyrolysis of Azolla filiculoides and Ulva fasciata macroalgae

S. Pourkarimi; A. Hallajisani; A. Alizadehdakhel; A. Nouralishahi

Volume 7, Issue 3 , July 2021, , Pages 331-346


  BACKGROUND AND OBJECTIVES: In this study, the characteristics of bio-oil samples produced through slow pyrolysis of two different macroalgae, i.e. Azolla ‎filiculoides and Ulva fasciata, at optimized conditions were determined and compared.METHODS: For this purpose, the effects of temperature (300-500 ...  Read More

Environmental Science
Biodiversity and integration of ecological characteristics of species in spatial pattern analysis

Z. Mohebi; H. Mirzaei

Volume 7, Issue 3 , July 2021, , Pages 473-484


  BACKGROUND AND OBJECTIVES: Assessment of biodiversity is a key factor in understanding of function and ecosystem management. Nevertheless, an operating procedure for assessing biodiversity and spatial pattern has not been established yet. Therefore, this empirical study was conducted to explore the role ...  Read More

Environmental Science
The effects of glucose, nitrate, and pH on cultivation of Chlorella sp. Microalgae

H. Nouri; J. Mohammadi Roushandeh; A. Hallajisani; A. Golzary; S. Daliry

Volume 7, Issue 1 , January 2021, , Pages 103-116


  BACKGROUND AND OBJECTIVES: Bioenergy is a phenomenon that has attracted humans’ attention for about a century. The desirable biological properties of chlorella sp.microalgae have turned it to one of the most ideal options for the production of biodiesel. However, the economic issues must be taken ...  Read More