Optimasi Pembuatan Kitosan Dari Kitin Limbah Cangkang Rajungan (Portunus pelagicus) Untuk Adsorben Ion Logam Merkuri

Rahayu, Lucia Hermawati; Purnavita, Sari

doi:10.14710/reaktor.11.1.45-49

Cited by 22 publications

(24 citation statements)

References 2 publications

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“…The obtained value of deacetylation degree of chitosan in this study was 70.96%. It corresponds well with the degree of deacetylation in Rahayu (2007) for chitosan made from crab shells of 79.65% at 90˚C and a processing time of 120 minutes.…”

Section: Resultssupporting

confidence: 65%

“…As an adsorbent, chitosan is able to absorb metal ions such as cadmium, mercury, copper chrome, and nickel. In the experiments conducted by Rahayu (2007), the adsorption using chitosan waste crab shells at pH 2, 3, 4, 5, 6 showed that the higher is pH, the higher the absorbed Mercury concentration. Another research conducted by Tiara (2014) using chitosan for metal adsorption of Pb from mining wastewater in Bangka Belitung stated that the optimum adsorption process was conducted at pH 3 with an adsorption percentage of 80.22%.…”

Section: Introductionmentioning

confidence: 99%

“…It shows that low pH or acidic condition is more preferable for Pb adsorption process. On the contrary, according to Rahayu (2007), a higher pH value means a higher percentage of the pollutant removal for mercury.…”

mentioning

confidence: 98%

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Adsorption for Lead Removal by Chitosan from Shrimp Shells

Pratiwi

Prinajati

2018

indones. j. urban. environ. technol.

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Aim: The objective of this study is to obtain the optimum efficiency of Lead (Pb) removal by adsorption using shrimp shells chitosan. Adsorption is one of the alternative ways to treat heavy metal. Various substances can be used as adsorbents for the adsorption process. One of the natural adsorbents that can be utilized is shrimp shells. Methodology and Results: In general, the process of making chitin into chitosan includes demineralization with dilute HCl, deproteinization with dilute NaOH, then deacetylation of chitin using concentrated NaOH. This study would demonstrate the adsorption on artificial waste containing 100 mg/L of Pb using 1 gram of chitosan with variations in pH (4, 5, 6) and time (30, 60, 90 minutes) to determine the effectiveness of chitosan made of shrimp shells in reducing Pb concentration. The results show that the highest removal efficiency of lead was achieved at pH 4 and 90 minutes duration with a removal percentage of 99.88%. Conclusion, significance, and impact study: Chitosan compounds as the results of shrimp shells processing have amine groups (NH2) which are nucleophiles (rich in electrons). It is favorable to be used as biocoagulants or bioadsorbents of lead heavy metal with a removal efficiency of above 90%.

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Section: Resultssupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

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Adsorption for Lead Removal by Chitosan from Shrimp Shells

Pratiwi

Prinajati

2018

indones. j. urban. environ. technol.

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“…Selain memiliki kelebihan, limbah udang juga memiliki kelemahan sebagai pakan karena mengandung kitin yang cukup tinggi yang bersifat sulit dicerna. Kitin adalah biopolimer dari unit N-asetil-Dglukosamin bewarna putih, tidak berasa, tidak berbau dan tidak larut air, pelarut organik umumnya, asam-asam anorganik dan basa encer (Rahayu dan Purnavita, 2007). Kitin mengikat N dari asam amino penyusun protein sehingga protein menjadi sulit dicerna.…”

Section: Pendahuluanunclassified

Pengaruh penggunaan tepung limbah udang fermentasi terhadap karakteristik organ reproduksi pada puyuh petelur (Coturnix coturnix japonica)

Hilkias

Suprijatna

Ondho

2017

JIIP

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ABSTRACT:The aim of the present study was to evaluate the effect of fermented shrimp waste meal on the characteristics of reproductive organs such as live weight, oviduct weight and length, ovarian weight, total yellow follicles, total white follicles, oviduct percentage and reproductive organ percentage. This experiment was conducted on Faculty of Animal Science and Agriculture, Diponegoro University. A total of 250, 6-week-old Japanese quail (consist of 250 females) were randomly assigned to one of 5 dietary treatments. 1st group (T0) was fed by diet without shrimp waste (control), 2nd group (T1) was fed by diet with 7,5% non-fermented shrimp waste, 3rd group (T3) was fed by diet with 5% fermented shrimp waste (FSW), 4th group (T3) was fed by diet with 7,5% FSW and 5th group was fed by diet with 10% FSW. 2 quails from each replicates were taken as samples. The members of a given sample were killed by severing the neck then separated the reproductive organs from the body. Measured the live weight, oviduct weight and length, ovarian weight, total yellow follicles, total white follicles, oviduct percentage and reproductive organ percentage. All data were examined using analysis of variance (ANOVA). The results showed that the effect of fermented shrimp waste meal on reproductive organs characteristics such as live weight, oviduct weight and length, ovarian weight, total yellow follicles, total white follicles, oviduct percentage and reproductive organ percentage were not significant. The use of fermented shrimp waste up to 10% didn't obstruct the growth and development of quail reproductive organs.Keywords: Japonica quailI, fermented shrimp waste, characteristics of reproductive organs PENDAHULUANPesatnya pertumbuhan puyuh di Indonesia disebabkan oleh tingginya minat masyarakat karena puyuh cepat bertelur. Produksi telur puyuh yang tinggi dapat menjadikannya suplementasi telur ayam. Kandungan protein telur puyuh cukup tinggi yaitu 13,35% (Ketaren, 2007), lebih tinggi dari telur ayam dan itik yaitu 12,14% dan 12,81% (Chen, 1996). Pemeliharaan puyuh petelur memiliki kendala yaitumembutuhkan bahan pakan tinggi protein yang mahal harganya sehingga perlu alternatif sumber protein yang murah, tidak bersaing dengan manusia, ketersediaanya tinggi dan kandungan nutrisinya tinggi. Alternatif bahan pakan yang dapat digunakan salah satunya adalah limbah udang.

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“…berhasil mengaplikasikan kitosan untuk menyerap Ni2+,Rahayu (2007) berhasil mengabsorbsi Hg2+,Sanjaya (2007) berhasil mengabsorbsi Pb2+. Nasir dkk.…”

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Analisis Kandungan Mineral Tembaga (Cu) yang Terdapat pada Struktur Batu Tambang Dengan Metode Atomic Absorption Spectrofotometer (AAS)

Bukhari

Hayati

Humayroh

et al. 2018

Jurnal. Kependidikan. Fisika

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[Title: Analysis of Copper (Cu) Mineral Content in the Mining Rock Structure using the Atomic Absorption Spectrophotometer (AAS) Method]. This research was conducted with the aim of: 1) Making chitosan based on local crab shells NTB, 2) Test the absorption of Au ions using chitosan with AAS. This research was carried out using the AAS method, namely by making chitosan from crab shells, Au stock solution which was prepared in the first stage was given chitosan powder and carried out absorption with varying times. Analysis of gold content in Au stocks that have been treated with AAS to determine the remaining Au content and Au absorbed.

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Optimasi Pembuatan Kitosan Dari Kitin Limbah Cangkang Rajungan (Portunus pelagicus) Untuk Adsorben Ion Logam Merkuri

Cited by 22 publications

References 2 publications

Adsorption for Lead Removal by Chitosan from Shrimp Shells

Adsorption for Lead Removal by Chitosan from Shrimp Shells

Pengaruh penggunaan tepung limbah udang fermentasi terhadap karakteristik organ reproduksi pada puyuh petelur (Coturnix coturnix japonica)

Analisis Kandungan Mineral Tembaga (Cu) yang Terdapat pada Struktur Batu Tambang Dengan Metode Atomic Absorption Spectrofotometer (AAS)

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