用天冬氨酸和马尾藻粉作为木材金属还原剂印刷绿色生肉（毒珍珠）

IF 0.5 4区地球科学 Q3 Earth and Planetary Sciences

Journal of Marine Research Pub Date : 2023-02-12 DOI:10.14710/jmr.v12i3.35603

Khoirunnisah Riswanti, Sri Sedjati, Endang Supriyantini

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引用次数: 0

摘要

绿壳中重金属积累的增加会危及消费者。马尾藻是一种有可能降低金属吸收率的海藻，因为它含有具有降低金属吸收功能的藻酸盐。羟基和羧基等功能性胶可以吸收绿壳肉上的重金属离子（Pb）。本研究的目的是确定使用马尾藻粉和乙酸降低绿壳肉重量金属率的影响，并确定马尾藻粉末中所含的功能。所用方法为实验室测试，使用三倍浓度处理。马尾藻粉末使用45°C烘箱干燥24小时，然后稀释并测试FTIR。将货架肉浸泡在马尾藻中90分钟。粉末浓度为0%、4%、6%和8%，pH为5（添加乙酸）。使用原子吸收分光光度法（AAS）对样品进行结构化和称重。研究表明，海藻马尾藻的浓度不影响Anova试验对木材金属的吸收（P≤0.05）。海藻马尾藻的浓度最低，为0.111mg/kg，浓度为8%。马尾藻粉末上的功能胶是羟基（-OH）、氨基（-NH2）和烷烃（-CH2）。♦绿贻贝（绿贻贝）中重金属的过量积累会伤害消费者。马尾藻是一种具有金属还原剂潜力的海藻，因为它含有具有金属吸收官能团的藻酸盐。羟基和羧基等官能团可以吸收绿贻贝肉中的铅金属离子。本研究旨在确定使用海藻粉马尾藻和乙酸降低绿贻贝中铅金属含量的效果，并鉴定马尾藻粉中所含的官能团。该方法是实验室实验，使用3次重复的浓缩处理。马尾藻属粉末使用烘箱在45°C下干燥24小时，然后捣碎并测试FTIR。扇贝肉在浓度为0%、4%、6%和8%的马尾藻粉中浸泡90分钟，pH值为5（添加乙酸）。样品被销毁，并使用原子吸收分光光度法（AAS）测量铅含量。结果表明，马尾藻粉的浓度不影响Anova试验对铅金属的吸附（P≤0.05）。海藻粉的浓度对铅金属含量的下降幅度最大，在0.111mg/kg时下降了8%。马尾藻粉末中的官能团为羟基（-OH）、胺（-NH2）和烷烃（-CH2）。

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Perendaman Daging Kerang Hijau (Perna viridis) Menggunakan Asam Asetat dan Bubuk Sargassum sp. sebagai Penurun Kadar Logam Timbal (Pb)

Akumulasi logam berat berlebih pada kerang hijau (Perna viridis) dapat membahayakan konsumen. Sargassum sp. merupakan rumput laut yang berpotensi sebagai penurun kadar logam karena mengandung alginat yang memiliki gugus fungsi penyerap logam. Gugus fungsi seperti hidroksil dan karboksil dapat menjerap ion logam timbal (Pb) yang terdapat pada daging kerang hijau. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan bubuk rumput laut Sargassum sp. dan asam asetat sebagai penurun kadar logam timbal pada daging kerang hijau serta mengidentifikasi gugus fungsi yang terkandung dalam bubuk Sargassum sp. Metode yang digunakan yaitu percobaan labotatoris, menggunakan perlakuan konsentrasi sebanyak 3 kali pengulangan. Bubuk Sargassum sp. dikeringkan menggunakan oven suhu 45°C selama 24 jam, kemudian dihaluskan dan diuji FTIR. Daging kerang direndam pada konsentrasi bubuk Sargassum sp. 0%, 4%, 6%, dan 8%, dengan pH 5 (penambahan asam asetat) selama 90 menit. Sampel didestruksi dan dilakukan pengukuran kadar logam timbal menggunakan Atomic Adsorption Spectrofotometri (AAS). Hasil penelitian menunjukkan konsentrasi bubuk rumput laut Sargassum sp. tidak mempengaruhi penjerapan logam timbal dengan uji Anova (P≤0,05). Konsentrasi bubuk rumput laut Sargassum sp. dengan penurunan kadar logam tertinggi yaitu konsentrasi 8% sebesar 0,111 mg/kg. Gugus fungsi yang terdapat pada bubuk Sargassum yaitu hidroksil (-OH), amina (-NH2), dan alkana (-CH2). Excessive accumulation of heavy metals in green mussels (Perna viridis) can harm consumers. Sargassum sp. is a seaweed that has the potential as a metal reducing agent because it contains alginate which has a metal-absorbing functional group. Functional groups such as hydroxyl and carboxyl can absorb lead metal (Pb) ions found in green mussel meat. This study aims to determine the effect of using powdered seaweed Sargassum sp. and acetic acid as lowering metal levels of lead in green mussels as well as identifying the functional groups contained in powdered Sargassum sp. The method was used is a laboratory experiment, using a concentration treatment of 3 repetitions. Sargassum sp. powder dried using an oven at 45°C for 24 hours, then mashed and tested FTIR. Scallop meat soaked in powder concentration of Sargassum sp. 0%, 4%, 6%, and 8%, with pH 5 (addition of acetic acid) for 90 minutes. The sample was destroyed and the lead content was measured using Atomic Adsorption Spectrophotometry (AAS). The results showed that the concentration of Sargassum sp. powder not affect lead metal adsorption by Anova test (P≤0.05). The concentration of powdered seaweed Sargassum sp. with the highest decrease in metal content, namely the concentration of 8% at 0.111 mg/kg. The functional groups in Sargassum powder are hydroxyl (-OH), amine (-NH2), dan alkane (-CH2).

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来源期刊

Journal of Marine Research 地学-海洋学

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： The Journal of Marine Research publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. In the area of biology, studies involving coupling between ecological and physical processes are preferred over those that report systematics. Authors benefit from thorough reviews of their manuscripts, where an attempt is made to maximize clarity. The time between submission and publication is kept to a minimum; there is no page charge.