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All Journal Jurnal Ilmu Lingkungan 3BIO: Journal of Biological Science, Technology and Management Current Research on Biosciences and Biotechnology
Rahmawati, Andira
School Of Life Sciences And Technology, Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience

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Physiological strategies of Eichhornia crassipes (Mart.) Solms to tolerate Cr6+ accumulation, compared to a sensitive species Pistia stratiotes L. Taufik Taufikurahman; Andira Rahmawati; Muhammad Arief Ardiansyah; Dea Prianka Ayu Ilhamsyah; Serafina Rosanti
Jurnal Ilmu Lingkungan Vol 18, No 1 (2020): April 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.592 KB) | DOI: 10.14710/jil.18.1.82-88

Abstract

Chromium in the form of hexavalent chromium (VI) has been used in some industry including leather tanning industry. The chemical has been known to be harmful to  living organisms. Therefore, it is important to treat wastewater from leather tanning industry before being discharged to the environment. The aim of this study is to examine ecophysiological strategies of  waterhyacinth (Eichhornia crassipes)  to tolerate Cr6+ accumulation in its tissue, compared to sensitive species water lettuce (Pistia stratiotes).  The plants  were cultivated in containers containing Hoagland medium and treated with some variation of Cr6+ concentrations of Cr6 i.e. 0, 40, 80 and 120 ppm for 14 days. Some parameters including CAT (catalase), Ascorbate peroxidase (APX), chlorophyll concentration and proline  in the plants were measured. The biomass yield of plant in Cr6+ stress was negative (-0.732 to -1.84 g/week) which indicated both E. crassipes and P. stratiotes  reduced their growth. The higher the concentration of Cr6+, the lower the chlorophyll contents in the leaves. The lowest of chlorophyll content was in 120 ppm (0.15 mg/g in P. stratiotes  and 0.12 mg/g in E. crassipes). The highest of CAT activity in E. crassipes was 109% in 40 ppm Cr6+, while in P. stratiotes  was 76% in 120 ppm. Proline content in both E. crassipes and P. stratiotes  were not different significantly. In general, E. crassipes plants have the ability to adapt to Cr6+ stress better compared to P. stratiotes which was severely damaged when grown in high Cr6+ concentration. Both plants can remediate waste fairly well  (level of elimination 62-68%) during the exposure period of 14 days to Cr6+ solution.
The Physiological Responses of Water Hyacinth (Eichhornia crassipes (Mart). Solms) and Water Lettuce (Pistia stratiotes L.) as Trivalent Chromium Bioaccumulator Rizka Purnamawati; T Taufikurahman; Andira Rahmawati; Chalvin Rura Putra; Din Dzakamala Fafi Rahmatilah; Findy Ashgi
3BIO: Journal of Biological Science, Technology and Management Vol. 2 No. 1 (2020)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2020.2.1.2

Abstract

Chromium is one of the heavy metals used in industrial fields, i.e., metallurgical industry, chemical industry, heat-retardant, and leather tanning industry. Untreated wastewater from these industries can pollute rivers and threaten the aquatic ecosystem. Some aquatic plants such as water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes) have been known as metal hyperaccumulators and can be used as phytoremediator for polluted water. This study aims to determine the physiological and morphological responses of water hyacinth and water lettuce plants treated by different concentrations  of trivalent chromium and to study which plant is effective for trivalent chromium removal. The experiment was conducted for 2 week at screen house. After two weeks, the plants were harvested and the weight was measured. The samples were separated into shoot and root and were analyzed for Cr content, chlorophyll, proline and CAT enzyme activity. The results of this study indicated that the levels of water hyacinth chromium in roots and leaves are lower (863.988 mg/Kg, 899.126 mg/Kg, 685.877 mg/Kg for treatment 40 ppm, 80 ppm, and 120 ppm respectively) than the levels of chromium in water lettuce (1584.264 mg/Kg, 1660 mg/Kg, 1413 mg/Kg for treatment 40 ppm, 80 ppm, and 120 ppm respectively). Physiological parameter, i.e., chlorophyll and proline levels in water hyacinth and water lettuce from all concentration treatment did not differ significantly (P> 0.05). The activity of the catalase enzyme in water hyacinth and water lettuce decreased with increasing chromium levels. The highest catalase enzyme activity was observed in control treatment of water lettuce (1.61 unit/mg) and 40 ppm treatment of water hyacinth (1.006 unit/mg). The highest biomass dry weight of both plants was found in plants with control treatment (15.38 gr and 8.48 gr for water hyacinth and water lettuce respectively). Therefore, we concluded that water lettuce is better for trivalent chromium removal than water hyacinth.
Biocomposites from anaerobically digested Eichhornia crassipes ((Mart.) Solms), as an alternative solution for the post-phytoremediation process Gabriella Marsaulina; Taufik Taufikurahman; Andira Rahmawati
Current Research on Bioscences and Biotechnology Vol. 2 No. 2 (2021)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/crbb.2021.2.2/ZLCB2984

Abstract

Water hyacinth (Eichhornia crassipes) is a plant species commonly used for phytoremediation to reduce high chromium content in tannery liquid waste in Garut, West Java. Water hyacinth materials harvested from the phytoremediation can be used for the anaerobic digestion process to produce biogas and bio-slurry. This study aimed to determine the reduction of chromium content found in water hyacinths due to the anaerobic digestion process, and utilization of bio-slurry from the anaerobic digestion process as a biocomposite material. The anaerobic digestion process was carried out for 33 d using biodigesters and the composition of the biodigesters were varied into 100% dried water hyacinths and 80% water hyacinths with the addition of 20% cow dung. The bio-slurry from the anaerobic digestion process was then used for making biocomposites with 3 different compositions, i.e., 75 and 25%; 50 and 50%; and 25 and 75% of cement and bio-slurry, respectively. The average chromium content found in water hyacinths from the phytoremediation process without anaerobic digestion process was 41.964 mg/l. The results show a reduction in the amount of chromium after the anaerobic digestion process was found in each composition of bio-slurry, which were 15.979 mg/l (100% water hyacinth) and 14.861 mg/l (80% water hyacinth + 20% cow dung). Biodigester with a composition of 80% water hyacinth + 20% cow dung produced the highest average volume of biogas which was 0.424 l. The biocomposite of 75% cement and 25% bio-slurry had the highest compressive strength value of 30.598 MPa and water absorption capacity of 37.25%. It can be concluded that biocomposite with the composition of 75% cement and 25% water hyacinth bio-slurry is promising to be used as an alternative material for buildings.
An Evaluation of Stevia rebaudiana Leaf-Axillary Shoot Formation, Cultured in MS Medium Supplemented with IAA-BAP and MS Medium Supplemented with Kinetin Andira Rahmawati; Victor Emmanuel; Iriawati Iriawati; Khalilan Lambangsari; Rizkita Rachmi Esyanti; Roohaida Othman; Aldo Nathan Dela Simamora; Bugy Suwito
3BIO: Journal of Biological Science, Technology and Management Vol. 5 No. 1 (2023)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2023.5.1.1

Abstract

Stevia rebaudiana leaves can be used as a sweetener alternatives because they contain steviol glycoside derivative compounds, including steviosides and rebaudioside-A. Propagation of Stevia is more optimally carried out using in vitro culture when compared to conventional propagation through seeds or cuttings. This study aimed to evaluate the formation and growth of Stevia shoots and leaves in MS medium containing a mixture of IAA and BAP with MS medium containing kinetin only, as well as evaluating the use of a liquid medium containing kinetin. Stevia was initiated from apical shoot then grown in MS medium containing a mixture of IAA and BAP with MS medium containing kinetin only. Stevia was subcultured every 4 weeks. Several parameters measured were number of axillary shoots and number of leaves. It was transferred into a liquid medium for 7 days. The results showed that the formation and growth of axillary buds and leaves at the initiation stage were better in medium containing IAA and BAP compared to medium containing single hormone kinetin. At the stage of shoot multiplication and maintenance, cultivation in semi-solid medium containing kinetin showed more leaves and axillary shoots compared to that cultivated in semi-solid medium with the addition of IAA and BAP. Plants acclimatized in liquid medium supplemented with 1 ppm kinetin showed fast plant growth but were not accompanied by sturdy stem growth. The presence of brownish color on certain parts of the plant such as in some leaves and stems was also observed. 
Co-Authors Aldo Nathan Dela Simamora Bugy Suwito Chalvin Rura Putra Dea Prianka Ayu Ilhamsyah Din Dzakamala Fafi Rahmatilah Findy Ashgi Gabriella Marsaulina Iriawati Iriawati Khalilan Lambangsari Muhammad Arief Ardiansyah Rizka Purnamawati Rizkita Rachmi Esyanti Roohaida Othman Serafina Rosanti T Taufikurahman Taufik Taufikurahman Taufik Taufikurahman Victor Emmanuel