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  • International Information and Engineering Technology Association  (11)
  • Fudholi, Ahmad  (11)
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Publisher
  • International Information and Engineering Technology Association  (11)
Language
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  • 1
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 2 ( 2022-04-27), p. 319-323
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 2 ( 2022-04-27), p. 319-323
    Abstract: Flavonoid glycosides are a type of secondary metabolite that is one of the active chemicals in plants. The antioxidant efficacy of solanum betaceum flavonoid glycosides extract on malondialdehyde levels and superoxide dismutase activity in Wistar rat kidneys with maximum physical activity is the focus of this investigation. The DPPH technique was used to conduct an in vitro activity test. The in vivo test includes four treatment groups: control, stress, ethanol extract, and flavonoid glycoside extract group. Swimming almost one and a half hours every day for five days and being fed and drinking ad libitum is the treatment for stress conditions. Ethanol and flavonoids glycosides extract were given at doses of 50 mg/kg/BW/day respectively. In vitro test result with DPPH technique glycoside flavonoid extract was categorized as a strong antioxidant with an IC50 of 69.89 ppm. The intake of ethanol extract and flavonoid glycoside extract at a dose of 50 mg / Kg BW significantly lower MDA levels (p 〈 0.05), and can prevent oxidative stress through SOD in Wistar rat kidneys.
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 1 ( 2022-2-28), p. 87-93
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 1 ( 2022-2-28), p. 87-93
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 3
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 5 ( 2022-10-31), p. 701-709
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 5 ( 2022-10-31), p. 701-709
    Abstract: Lake Tempe in the Wajo Regency, South Sulawesi (Indonesia) is highly toxic due to metal pollution from industrial activities and the activities of residents living around the region. Zinc-contaminated water poses a potential threat to biotic communities. This research aims to develop phytoremediation technology to effectively remove toxic zinc from contaminated lake Tempe. The use of plants as phytoremediation agents to accumulate metals in polluted water is considered adequate because the method is environmentally friendly and presents economic value. This study was therefore designed to assess the phytoremediation potential of water spinach against zinc (Zn), copper (Cu), and lead (Pb). Water spinach was planted in Tempe lake contaminated with zinc (Zn), copper (Cu), and lead (Pb) metals, and the study was conducted for 30 days under natural conditions. Subsequently, the Tempe lake physicochemical properties, including pH, TDS, TSS, total nitrogen, total phosphate as P, and Zn content, were measured, before and after the phytoremediation process. The ability of plants to absorb zinc (Zn), copper (Cu), and lead (Pb) were assessed by the bioconcentration factor (BCF). The results showed that there was a correlation between the BCF value and the phytoremediation time. The longer the phytoremediation time, the higher the BCF value are obtained. Infra-Red (IR) data shows the presence of metal binding in plants with the functional groups C=S, C=N, and OH. Water spinach has the potential as a phytoremediation agent in remediating zinc (Zn), copper (Cu), and lead (Pb) metals in polluted lake Tempe water.
    Type of Medium: Online Resource
    ISSN: 1755-7437
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2021
    In:  International Journal of Design & Nature and Ecodynamics Vol. 16, No. 4 ( 2021-8-31), p. 393-399
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 16, No. 4 ( 2021-8-31), p. 393-399
    Abstract: This research reports nanoparticles or nanocatechin produced from catechin extracted from gambier and the differences between the properties of the extracted catechin and nanocatechin. The study began with the preparation of 〉 95% pure catechin through successive extraction. The catechin obtained was converted to nanocatechin with a high-speed homogenizer on a 1% suspension of catechin in water at 12,000 rpm for 30, 45, 60, 75 or 90 minutes. Results showed average diameters of the nanocatechin 90-minute homogenized colloids were then dried with a spray dryer so physical and chemical properties could be compared with those of the raw extracted catechin. Catechin content, water content, pH, refractive index, density, molecular weight and rotational angle were unaltered. Appearance, solubility, thermal properties, highest absorbance wavelength and antioxidant activity were measured. Initial degradation temperature and antioxidant activity of nanocatechin were higher than those in the originally extracted catechin.
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2021
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 5
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2021
    In:  International Journal of Design & Nature and Ecodynamics Vol. 16, No. 6 ( 2021-12-21), p. 625-630
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 16, No. 6 ( 2021-12-21), p. 625-630
    Abstract: Microalgal isolates in various habitats have different biocomponents, and isolates found in the swamps of South Sumatra have not been explored deeply. This study was designed to analyse morphologically and isolate microalgae that have potential as biofuel candidates through their lipid content. Results showed that five isolates originating from four different sources in South Sumatra, namely, Chlorella vulgaris Beyerinck (DV 005), Dictyosphaerium granulatum Hindák (DV 003), Nannochloropsis sp. (DV 009), Scenedesmus bernardii G. M. Smith (DV 011) and Golenkinia radiata Chodat (DV 001), were identified. Amongs the five isolates, the C. vulgaris Beyerinck (DV 005) isolate had the highest lipid content (15.30%), indicating its potential as biofuel candidate.
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2021
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 6
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 3 ( 2022-06-30), p. 417-422
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 3 ( 2022-06-30), p. 417-422
    Abstract: The high level of community activity around the river has resulted in high levels of heavy metals contained in river water. Commonly found heavy metals such as zinc (Zn), mercury (Hg), and copper (Cu). To reduce or remove heavy metals in the waters, phytoremediation techniques are used. The purpose of this study was to determine the ability of water hyacinth plants (E. crassipes) in remediating Zn2+ metal in contaminated Lake Tempe water. The research method used includes the sampling process, acclimatization, physicochemical analysis, Zn analysis, Bio-Concentration Factor (BCF), and infrared (IR) analysis. The Zn concentration in Lake Tempe water decreased after 30 days of the phytoremediation process. And the highest adsorbed Zn (II) metal ions on water hyacinth plants was 77,257 ppm on the 30th day. It was found that there is a relationship between the BCF value and the phytoremediation time, the higher the phytoremediation time, the higher the BCF value obtained. IR data show the presence of Zn metal bonds in plants involving the functional groups C=S, C=N, and OH. This indicates that water hyacinth (E. crassipes) has the potential to be used as a phytoremediation agent in adsorbing Zn in Lake Tempe waters.
    Type of Medium: Online Resource
    ISSN: 1755-7437
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 7
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2023
    In:  International Journal of Design & Nature and Ecodynamics Vol. 18, No. 2 ( 2023-4-30), p. 465-471
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 18, No. 2 ( 2023-4-30), p. 465-471
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2023
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 8
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 4 ( 2022-08-31), p. 503-511
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 4 ( 2022-08-31), p. 503-511
    Abstract: Low toxicity gelcasting water-based method was conducted using a non-acrylamide system, with cassava starch and natural clay as poregenic agent and raw material, respectively, and the resulting porous ceramic was used as Fe2O3 catalyst support. The concentrations of cassava starch used were 1%, 3%, 5%, 7%, and 9%, the sintering process was performed based on the results of TGA/DTA thermal analysis. In addition, the sol-gel coating method was used to impregnate the Fe2O3 catalyst into the porous ceramic. BET results show that the pores formed in the ceramic body are micro pores with a size range of 21.41-23.27 Å, hence the concentration of cassava starch does not affect the pore characteristics. The morphology of SEM results also indicated the presence of pore formation in the ceramic body. According to the quantitative XRD analysis, the cassava concentration affects the percentage of catalyst impregnated. The highest percentage of Fe2O3 catalyst on 7% cassava starch was 41.15% and the phase of the catalyst successfully impregnated was α-Fe2O3with a rhombohedral structure. In addition, the highest percentage of phenol degradation was 59.15% with good performance after 8 times of recycling. In this study, we provide for the first time, utilization of Fe2O3-porous ceramics with a wonderful performance of recycling ability in the process of phenol photodegradation.
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 9
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2021
    In:  International Journal of Design & Nature and Ecodynamics Vol. 16, No. 4 ( 2021-8-31), p. 445-450
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 16, No. 4 ( 2021-8-31), p. 445-450
    Abstract: Chicken skin is a source of animal protein hydrolysate, which has a potential as an antioxidant. This study aimed to determine the effect of different concentrations of the enzyme papain on the degree of hydrolysis, antioxidant capacity, percentage of reducing power (%RP) and amino acid composition of chicken skin protein hydrolysate. Hydrolysis was carried out using papain with various concentrations (3%, 4% and 5%, w/w protein substrate) at pH 7 and 50℃ for 6 h. The degree of hydrolysis was determined by spectrophotometry. Antioxidant capacity and %RP was determined by ferric reducing antioxidant power method and expressed in milligram of ascorbic acid equivalent per gram of sample, and amino acid composition were determined using high-performance liquid chromatography. The results showed that variations in papain concentration had a significant effect (P 〈 0.05) on the degree of hydrolysis, antioxidant capacity and %RP of chicken skin hydrolysate. The papain concentration of 4% resulted in the optimum protein hydrolysate with a degree of hydrolysis of 61.68%±0.64%, an antioxidant capacity of 8.72±0.30 mg AA/g sample and a %RP of 54.12%±1.78%. The protein hydrolysates of the treated chicken skin showed a high content of amino acids, namely, glycine, glutamate, proline, arginine and aspartate.
    Type of Medium: Online Resource
    ISSN: 1755-7437 , 1755-7445
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2021
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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  • 10
    Online Resource
    Online Resource
    International Information and Engineering Technology Association ; 2022
    In:  International Journal of Design & Nature and Ecodynamics Vol. 17, No. 6 ( 2022-12-31), p. 957-965
    In: International Journal of Design & Nature and Ecodynamics, International Information and Engineering Technology Association, Vol. 17, No. 6 ( 2022-12-31), p. 957-965
    Abstract: Coronavirus Disease (COVID-19) is an infectious disease that has a high fatality rate and is spreading quickly throughout the world. The WHO claims that SARS-CoV-2, a brand-new coronavirus strain, is to blame for this outbreak (Severe Acute Respiratory Syndrome Corona Virus-2) and that COVID-19 must be treated with both conventional medical therapy and a combination of modern medicine. The technique of this study, a review of the literature, focused on numerous investigations looking at the potential of curcumin molecules from turmeric to cure the COVID-19 disease. Primary data for scientific papers is gathered from national and international journals through searches on electronic search engines like Google Scholar, Sciencedirect, or PubMed and selected publications are assessed, evaluated, and interpreted by authors. Turmeric contains substances that are immune system boosters, anti-inflammatory, antitumor, antiviral, and antioxidants. Curcumin may prevent a number of viral infections, according to evidence. In vitro testing has shown that the SARS-CoV virus is resistant to curcumin's antiviral properties. It's possible that curcumin can halt viral replication. Curcumin has the potential to treat COVID-19 effectively. Curcumin has antiviral activity that can fight the SARS-CoV-two virus. Treatment with curcumin can change the virus top protein structure, preventing the virus from entering the body and from budding. Future study on the use of curcumin as SARS-Cov-2 virus inhibitory agent is necessary in order to employ it as a novel and long-lasting therapy option for COVID-19 patients.
    Type of Medium: Online Resource
    ISSN: 1755-7437
    URL: Issue
    Language: Unknown
    Publisher: International Information and Engineering Technology Association
    Publication Date: 2022
    detail.hit.zdb_id: 2492146-4
    SSG: 21
    Location Call Number Limitation Availability
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