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Lead Distribution on Marsilea crenata and Its Effect on Growth and Total Protein Content Nurhayati, Arry Y.; Hariadi, Yuda C
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UNEJ e-Proceeding

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The increasing risk of lead poisoning such as neuro-behavioral disorders and neurological damage; hypertension, brain and kidney damage; DNA and antioxidant defense system cell damage in developing countries due to the increase in lead contaminated environment. This research was aimed to investigate the effects of prolonged lead on protein levels in the Marsilea crenata plant. The plants have been used for generation by local farmers as a daily source of vegetables during crop growing season. The plants are also known as an exotic cuisine known as Semanggi Surabaya. Marsilea crenata were grown inside a glasshouse using a modified Hoagland solution in different levels of Pb. The growth, Pb content, and total protein content were then measured for eight weeks during exposure. The result has shown that the root of Marsilea crenata has the capability to absorb lead and translocate them inside its shoots and leaves, with the biggest amount were translocated to the younger leaves during one week of exposure and was then accumulated in the old leaves after longer exposures. Total protein content was higher on younger leaves than in older leaves, followed by shoot and then the root. The result has shown that with deep knowledge of Marsilea crenata it is possible of using it as a phytoremediator or as a source of food since the total protein was translocated on the edible part. Still, awareness is still needed since the plant may contain high levels of Pb with the existence of stress symptoms. It should be avoided to reduce the risk of lead poisoning. Keywords: Lead, Marsilea crenata, growth, protein

Susceptibility of Two Varieties Rice (Oryza sativa L.) on Saline Environment Hariadi, Yuda C; Nurhayati, Arry Y; Endraningrum, A.
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UNEJ e-Proceeding

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Serealia such as rice, wheat, and maize are very important world food demands, and rice was highest on the nutrional protein status with respect to amino acid composition. Rice (Oryza sativa) has been an important primary cereal for generations that supply around 90% of carbohydrate needs in Indonesia, that every effort to be made in acquiring the fullfillment demand. The research was aimed to investigate the tolerance of two rice varieties Towuti and Ciherang grown on fertile and arid soil on different salinity. Healthy and homogenous three weeks old seedlings were grown in a glasshouse on 0, 50mM, 100mM, 200mM, and 300mM of NaCl on plastic pots with two different soil, under a randomized design and five replicated five times. The growth in terms of leaf area and surface electrical potential difference were observed on a weekly basis for four weeks after the plants had been exposed. The result showed that leaf area and the electrical PD of both rice varieties were significantly reduced under fertile and arid soil under 200mM of NaCl and 300mmM of salinity. It is implied that the photosynthetic process was significantly affected by salinity and was concluded that both varieties were sensitive to salinity at 200mM of NaCl. There was possibility that the protein content was involved on the osmotic change on the salinity process, element supplements were needed, but there is a need for less expensive methods. Keywords: salinity, rice; protein, electrical PD, growth

Lead Distribution on Marsilea crenata and Its Effect on Growth and Total Protein Content Arry Y. Nurhayati; Yuda C Hariadi
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

The increasing risk of lead poisoning such as neuro-behavioral disorders and neurological damage; hypertension, brain and kidney damage; DNA and antioxidant defense system cell damage in developing countries due to the increase in lead contaminated environment. This research was aimed to investigate the effects of prolonged lead on protein levels in the Marsilea crenata plant. The plants have been used for generation by local farmers as a daily source of vegetables during crop growing season. The plants are also known as an exotic cuisine known as Semanggi Surabaya. Marsilea crenata were grown inside a glasshouse using a modified Hoagland solution in different levels of Pb. The growth, Pb content, and total protein content were then measured for eight weeks during exposure. The result has shown that the root of Marsilea crenata has the capability to absorb lead and translocate them inside its shoots and leaves, with the biggest amount were translocated to the younger leaves during one week of exposure and was then accumulated in the old leaves after longer exposures. Total protein content was higher on younger leaves than in older leaves, followed by shoot and then the root. The result has shown that with deep knowledge of Marsilea crenata it is possible of using it as a phytoremediator or as a source of food since the total protein was translocated on the edible part. Still, awareness is still needed since the plant may contain high levels of Pb with the existence of stress symptoms. It should be avoided to reduce the risk of lead poisoning. Keywords: Lead, Marsilea crenata, growth, protein

Susceptibility of Two Varieties Rice (Oryza sativa L.) on Saline Environment Yuda C Hariadi; Arry Y Nurhayati; A. Endraningrum
UNEJ e-Proceeding Indonesian Protein Society (IPS), International Seminar and Workshop 2014
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Serealia such as rice, wheat, and maize are very important world food demands, and rice was highest on the nutrional protein status with respect to amino acid composition. Rice (Oryza sativa) has been an important primary cereal for generations that supply around 90% of carbohydrate needs in Indonesia, that every effort to be made in acquiring the fullfillment demand. The research was aimed to investigate the tolerance of two rice varieties Towuti and Ciherang grown on fertile and arid soil on different salinity. Healthy and homogenous three weeks old seedlings were grown in a glasshouse on 0, 50mM, 100mM, 200mM, and 300mM of NaCl on plastic pots with two different soil, under a randomized design and five replicated five times. The growth in terms of leaf area and surface electrical potential difference were observed on a weekly basis for four weeks after the plants had been exposed. The result showed that leaf area and the electrical PD of both rice varieties were significantly reduced under fertile and arid soil under 200mM of NaCl and 300mmM of salinity. It is implied that the photosynthetic process was significantly affected by salinity and was concluded that both varieties were sensitive to salinity at 200mM of NaCl. There was possibility that the protein content was involved on the osmotic change on the salinity process, element supplements were needed, but there is a need for less expensive methods. Keywords: salinity, rice; protein, electrical PD, growth

THE POTENTIAL OF ORGANIC FERTILIZER FROM KITCHEN WASTE CONTAINING LOCAL MICROORGANISM FOR HOUSEHOLD USAGE Arry Y Nurhayati; Yuda C Hariadi; Moh Hasan
UNEJ e-Proceeding 2022: E-Prosiding Kolokium Hasil Penelitian dan Pengabdian kepada Masyarakat
Publisher : UPT Penerbitan Universitas Jember

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The public awareness of environmental management and responsibility for production and consumption of food has increased, leading our collaborators in society to process food waste into organic fertilizer. Food waste management, especially kitchen waste, is a major focus in developing countries due to urban development and an equal attentiveness to environmental sustainability. Turning kitchen waste into organic fertilizer is a solution that is simple, cost-effective, eco-friendly and can be further enhanced by the addition of local microorganisms (MOL). However, the process of producing MOL-enhanced organic fertilizer is still not widely known. In this paper, the organic fertilizer was produced by the decomposition of kitchen waste enhanced by MOL. A non-MOL-enhanced fertilizer was also procured for control. Both of the obtained fertilizers were assessed for parameters such as pH, C:N ratio, and other organic content. The results proved that MOL-enhanced organic fertilizer is more effective than organic fertilizer made by natural decomposition alone. Keywords: Organic_fertilizer; Kitchen_waste; Consumption_Production; Management

The Effect of Adding Variations in the Combination of Anthocyanin Extract and Curcumin Volume Fraction on the Mechanical Properties and Biodegradability of Seaweed-Based Bioplastic Materials Nuzulul Rahmah; Sujito; Yuda Cahyoargo Hariadi
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.9769

The environmental issues caused by conventional plastic waste are becoming increasingly serious, driving the development of more eco-friendly bioplastics. This study examines the mechanical properties, solubility, and biodegradability of seaweed-based bioplastics with the addition of curcumin and anthocyanin as additives. The results indicate that bioplastics containing only anthocyanin exhibit the best tensile strength (3.78 ± 0.26 MPa) and elasticity (12.48 ± 0.49 MPa). In contrast, bioplastics containing only curcumin show the lowest mechanical properties. The addition of anthocyanin enhances tensile strength and elasticity through the formation of strong hydrogen bonds with seaweed polymers, whereas curcumin decreases mechanical properties due to less stable molecular interactions. In terms of solubility, anthocyanin recorded the highest value (72.04%), while curcumin had the lowest (37.61%) due to its lower water stability. Regarding biodegradability, the combination of anthocyanin (1.25%) and curcumin (3.75%), as well as pure curcumin (5%), showed the highest degradation rates, whereas a balanced mixture (2.5%:2.5%) exhibited the lowest biodegradability. In conclusion, anthocyanin improves the mechanical properties and solubility of bioplastics, while curcumin supports biodegradability. Seaweed-based bioplastics with added curcumin and anthocyanin show potential as eco-friendly antibacterial materials.

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