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Microplastic Contamination in Marine Fish and Shells in the Coastal Areas of Jember Regency, Indonesia Prehatin Trirahayu Ningrum; Abul Haris Suryo Negoro; Didin Erma Indahyani; Kusnadi; Yanuar Nurdiansyah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 1 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v15i1.34888

Highlight Research Fish and shellfish on the coast of Payangan and Puger Several types of microplastics were detected in their gastrointestinal tract There were microplastic types of fiber, fragments, granules, and filaments Abstract Every year, it is estimated that the Indonesian seas receive 100,000-400,000 tons of plastic waste used for human consumption. Indiscriminate disposal of plastic waste will have an impact in the future. The problem of microplastics is an illustration that the use of plastic in daily activities will cause environmental ecological damage. The purpose of the study was to describe microplastic contamination in marine fish and shells in the coastal areas of Jember Regency, Indonesia. The method used is to detect and identify the type and numbers of microplastic particles in the gastrointestinal tract content of sea fish and shells obtained from fishermen around Payangan and Puger coastal Jember, Indonesia. The gastrointestinal tract was extracted with peroxide oxidation method (WPO). A light microscope was used to examine microplastic particles of types and numbers. The results showed that marine fish and shells in the coastal area of Jember Regency, Indonesia have been contaminated with microplastic. The microplastic in each marine fish and shells sample has a different type. There were microplastic types of fiber, fragments, granules, and filaments in the shells sample, while in the marine fish samples, there were all these types except granules. Fish and shellfish on the coast of Payangan and Puger had several types of microplastics detected in their gastrointestinal tract.

Komposit Bioactive Glass Berbasis Silika Abu Ampas Tebu dan Gum Mimba Menstimulasi Proses Remineralisasi Permukaan Gigi Indahyani, Didin Erma; Barid, Izzata; Verawati, Verawati
STOMATOGNATIC - Jurnal Kedokteran Gigi Vol 21 No 1 (2024)
Publisher : Fakultas Kedokteran Gigi Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/stoma.v21i1.47331

Dentin hypersensitivity results from exposed dentinal tubules. One of the treatments used is remineralization of dentin and cementum. Bioactive glass (BAG) is a material that can stimulate the remineralization process due to its silica content. Sugarcane bagasse contains high levels of silica and is used as a BAG material. Adding binders and emulsifiers to paste forms increases bonding and stability and makes application easier. Neem gum is a polysaccharide, has emulsifying properties, and can unite two or more ingredients with different properties, increasing the strength of the ingredients. The study aims to analyse the effect of neem gum and bioactive glass composites based on silica bagasse ash on tooth remineralisation. There were three research groups, namely control (BAG paste), treatment A (hyaluronic acid BAG paste) and treatment B (BAG paste, hyaluronic acid and neem gum). The injection paste was applied to the teeth [using cow teeth] on the mesial surface, then soaked in artificial saliva for six days and stored in an incubator at 370C. The remineralization process was observed by forming hydroxycarbonate apatite (HCA) on the tooth root surface using a scoring method based on the Scanning Electron Microscope (SEM) results. CA formation in the BAG, hyaluronic acid and neem gum composite group had a significantly (p<0.05) higher HCA formation score than the group without gum. The control group experienced a washout, so no HCA was formed. BAG composite paste with silica based on bagasse ash and neem gum stimulates the remineralization process marked by the formation of HCA on the tooth root surface.

The value of imbibition and syneresis for dental impression on red seaweed: a laboratory experiment Indahyani, Didin Erma; Barid, Izzata; Anggraeni, Priska Amelia
Padjadjaran Journal of Dentistry Vol 35, No 3 (2023): November 2023
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol35no3.49071

ABSTRACT Introduction: Alginate is a type of elastic dental impression, which is an irreversible hydrocolloid. The main components in sodium alginate can be obtained naturally through the extraction process from seaweed (Kappaphycus alvarezii). Several physical characteristics must be fulfilled by dental impressions, such as dimensional stability related to imbibition and syneresis. ANSI/ADA specification No.18 regarding the maximum permitted change in alginate impression materials may not exceed 0.5%. This research aimed to analyze the value of imbibition and syneresis on dental impressions of red seaweed extract (K.alvarezii). Methods: The research was conducted using an experimental laboratory method with a post-test-only control group design. There were two groups, namely the control group of commercial dental impressions and the treatment group using dental impressions with the sodium alginate extracted from red seaweed (K.Alvarezii) by the acid method, and the FTIR test was performed to analyze compound sodium alginate. Imbibition and syneresis measurements were carried out using a calliper on a plaster cast model from negative mould casting results, where previously, the mould was soaked in water for imbibition and evaporated for syneresis. Results: Imbibition and syneresis tests showed that the impression material group with sodium alginate from red algae was significantly lower than those with commercial impression materials. It was concluded that the impression material with sodium alginate from red seaweed had an effect on reducing the percentage of syneresis (p≤0.05) and imbibition (p≤0.05) of the impression material. Based on the results of our research, it was found that the alginate impression material extracted from red seaweed (k.alvarezii) had an imbibition value of 0.33% (p≤0.05) and syneresis of 0.28%, (p≤0.05) lower compared to alginate impression materials. commercial alginate impression material. Conclusion: The imbibition and syneresis values of red seaweed alginate show an excessively low value compared to commercial alginates. KEYWORDS dental impression,sodium alginate, Kappaphycus alvarezii, imbibition, syneresis

Elastic Recovery Properties of Alginate Impression Materials Based on Red Algae Kappaphycus alvarezii Indahyani, Didin Erma; Barid, Izzata; Nafisah, Nafisah; Praharani, Depi; Sumono, Agus; Probosari, Niken; Sulistiyani, Sulistiyani
Journal of Dentistry Indonesia Vol. 30, No. 3
Publisher : UI Scholars Hub

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

Alginate impression materials in dentistry are used to form details of the oral cavity organs. The alginate content in the impression material functions to form a gel. One source of alginate is algae. Objective: This study aims to determine the recovery elasticity and setting time of alginate impression materials made from red algae K. alvarezii. Methods: The sodium alginate in the composition of this alginate impression material was extracted from red algae K. alvarezii. The alginate impression material was tested for setting time and recovery elasticity and compared with commercial impression material (Hygedent®). Results: The elastic recovery of red algae sodium alginate impression materials was 97.43% which was not significantly different from the commercial impression materials (98.42%). These results showed that this alginate impression material has the same properties as commercial impression materials. In the setting time test, the the red algal alginate impression material was much longer than the commercial impression material, 1.39 m and 3.30 m respectively. Conclusion: It was concluded that the alginate impression material from the red algae K. alvarezii had a long setting time. At the same time, the recovery of elasticity did not differ from that of commercially available alginate impression materials.

Cytotoxicity analysis of alginate impression materials based red seaweed extract on cultured gingival fibroblast cells Praharani, Depi; Barid, Izzata; Indahyani, Didin Erma; Probosari, Niken; Lestari, Sri; Sulistiyani, Sulistiyani; Sumono, Agus
Odonto : Dental Journal Vol 11, No 2 (2024): December 2024
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.11.2.290-297

Background: Alginate is an impression material that is widely used in dentistry. Alginate can actually also be obtained from natural materials such as red seaweed. The impression procedure causes the impression material to come into contact with oral tissues including the gingiva. Ideally, the materials used must also meet requirements such as low toxicity or non-toxicity so that tissue damage does not occur. This study aims to analyze the cytotoxicity of alginate impression materials from red seaweed extract in gingival fibroblast cell. Method: This experimental laboratory design using post-test only control group design. The research groups consisted of: sodium alginate extract group, red seaweed extract-based alginate impression material, positive control and negative control. Cytotoxicity was tested on gingival fibroblast cell cultures and the effect was analyzed using the MTT assay. Exposure to gingival fibroblast cell cultures was differentiated in three time durations: 5 minutes, 10 minutes and 15 minutes. Each time duration was repeated three times. MTT-formazan production is a method used to measure cell viability (living cells). The data obtained were statistically analyzed using two-way ANOVA test and Tukey HSD post hoc test. Result: There was no significant difference in the average cell viability between the red seaweed extract-based alginate impression material group and the negative control group at an exposure duration of 5 minutes, which was more than 90%. Conclusion: The red seaweed extract-based alginate impression material has no toxic effect on gingival fibroblast cells at 5 minutes exposure.

Cytotoxicity analysis of alginate impression materials based red seaweed extract on cultured gingival fibroblast cells Praharani, Depi; Barid, Izzata; Indahyani, Didin Erma; Probosari, Niken; Lestari, Sri; Sulistiyani, Sulistiyani; Sumono, Agus
Odonto : Dental Journal Vol 11, No 2 (2024): December 2024
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.11.2.290-297

Background: Alginate is an impression material that is widely used in dentistry. Alginate can actually also be obtained from natural materials such as red seaweed. The impression procedure causes the impression material to come into contact with oral tissues including the gingiva. Ideally, the materials used must also meet requirements such as low toxicity or non-toxicity so that tissue damage does not occur. This study aims to analyze the cytotoxicity of alginate impression materials from red seaweed extract in gingival fibroblast cell. Method: This experimental laboratory design using post-test only control group design. The research groups consisted of: sodium alginate extract group, red seaweed extract-based alginate impression material, positive control and negative control. Cytotoxicity was tested on gingival fibroblast cell cultures and the effect was analyzed using the MTT assay. Exposure to gingival fibroblast cell cultures was differentiated in three time durations: 5 minutes, 10 minutes and 15 minutes. Each time duration was repeated three times. MTT-formazan production is a method used to measure cell viability (living cells). The data obtained were statistically analyzed using two-way ANOVA test and Tukey HSD post hoc test. Result: There was no significant difference in the average cell viability between the red seaweed extract-based alginate impression material group and the negative control group at an exposure duration of 5 minutes, which was more than 90%. Conclusion: The red seaweed extract-based alginate impression material has no toxic effect on gingival fibroblast cells at 5 minutes exposure.

Gerakan Zero Waste: Implementasi Pengelolaan Sampah Plastik Melalui Pemilahan Sampah Rumah Tangga pada Masyarakat Puger Jember Indahyani, Didin Erma; Rahayu, Prehatin Tri; Kusnadi; Negoro, Abdul Haris Suryo; Nurdiansyah, Yanuar; Wardani, L Dyah Purwita; Ganefo, Akhmad; Puspita, Indria Dwi; Sakinah, Wazirotus; Rudianto
Dental Agromedis Vol. 3 No. 1 (2025): Mei
Publisher : Fakultas Kedokteran Gigi, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/da.v3i1.5971

The escalating problem of plastic waste has become a serious environmental concern, particularly in coastal areas such as Puger District, Jember Regency. This community service program aimed to implement a Zero Waste movement through household waste sorting as a fundamental step in community-based waste management. The methods applied included awareness campaigns and waste-sorting training and The results demonstrated a significant increase in public awareness and participation in waste sorting, as well as waste weighing to quantify the amount and types of household waste generated before and after the intervention. Moreover, there was a notable rise in family involvement in household waste management. This initiative proves that educational and participatory approaches can effectively drive behavioral change toward a low-waste lifestyle. The household-based Zero Waste movement offers a promising model for sustainable environmental empowerment in coastal communities.Keywords: zero waste, plastic waste, waste sorting, household, community empowerment, Puger-Jember

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