Squid ink and its pharmacological activities

Jismi, Jose; Krishnakumar, K.; Dineshkumar, B.

doi:10.30574/gscbps.2018.2.3.0013

Cited by 10 publications

(5 citation statements)

References 15 publications

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“…The concentration of cadmium ions in the solution was determined using an atomic absorption spectrometer. The clearance (CL) efficiency of WSSM in adsorbing cadmium ions was calculated according to Equation (6).…”

Section: Adsorption Of Cadmium Ions By Wssm [40]mentioning

confidence: 99%

“…Subsequently, 50 mg of WSSM was added to it, then shaken to avoid the light, and kept in water baths at different temperatures (25,30,35,40,45, and 50 • C) for 1 h. After centrifugation at 10000 r/min for 20 min, the supernatant was collected and the concentration of cadmium ions in the solution was measured using an atomic absorption meter. The clearance (CL) efficiency of WSSM in adsorbing cadmium ions was calculated according to Equation (6).…”

Section: Adsorption Of Cadmium Ions By Wssm [40]mentioning

confidence: 99%

“…After centrifugation at 10000 r/min for 20 min, the supernatant was collected and the concentration of cadmium ions in the solution was measured using an atomic absorption meter. The clearance (CL) efficiency of WSSM in adsorbing cadmium ions was calculated according to Equation (6).…”

Section: The Influence Of Time On the Adsorption Of Cadmium Ions By Wssmmentioning

confidence: 99%

“…Notably, the ink sac constitutes approximately 1.3% of the squid's total weight. Predominantly composed of peptides, polysaccharides, trace elements, and melanin, the squid ink sac possesses an approximate melanin content of 20% [6]. This melanin variant belongs to the category of natural melanin and manifests as a polymer of indolequinone.…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Potential of Water-Soluble Squid Ink Melanin: Stability, Free Radical Scavenging, and Cd2+ Adsorption Abilities

Liu,

Zhang

et al. 2023

Foods

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Squid ink melanin can be efficiently extracted from the byproduct ink sac generated during squid processing. As a natural food colorant, it possesses inherent antioxidant properties and the capability to adsorb heavy metals. This study aims to investigate the solubility of water-soluble squid ink melanin (WSSM) obtained from the ink sac, as well as its stability under various conditions including temperature, pH, salt, sugar, potassium sorbate, metal ions, sodium benzoate, sodium sulfite (reducing agent), and hydrogen peroxide (oxidizing agent). Moreover, it explores the scavenging effects of WSSM on free radicals and cadmium ions. The findings suggest that WSSM’s stability is insignificantly affected by high temperature, sucrose, and salt. However, acidity, sodium benzoate, potassium sorbate, sodium sulfite (Na2SO3), and hydrogen peroxide (H2O2) significantly influence its stability. Most metal ions do not impact the stability of WSSM, except for Fe2+, Fe3+, Al3+, and Cu2+, which result in the precipitation of WSSM. Additionally, WSSM exhibits remarkable antioxidant activity with IC50 values of 0.91, 0.56, and 0.52 mg/mL for scavenging superoxide anion radicals (O2−·), hydroxyl radicals (·OH), and DPPH radicals, respectively. It also demonstrates the ability to adsorb the heavy metal Cd2+, with the adsorption rate gradually increasing with a higher temperature and larger amounts of WSSM added. Infrared spectroscopy analysis reveals the weakening of characteristic peaks (-COOH and -OH) during the process of Cd2+ adsorption by WSSM, while SEM confirms surface roughening and structural damage after Cd2+ adsorption. This study provides valuable insights for the utilization of squid melanin products as natural antioxidants and heavy metal adsorbents in the food industry.

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Section: Adsorption Of Cadmium Ions By Wssm [40]mentioning

confidence: 99%

Section: Adsorption Of Cadmium Ions By Wssm [40]mentioning

confidence: 99%

Section: The Influence Of Time On the Adsorption Of Cadmium Ions By Wssmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring the Potential of Water-Soluble Squid Ink Melanin: Stability, Free Radical Scavenging, and Cd2+ Adsorption Abilities

Liu,

Zhang

et al. 2023

Foods

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“…Cephalopods could be evaluated as a source of DA although there are some inkless octopus species [ 222 , 223 , 224 , 225 ]. Squid ink has anticancer, antioxidant, anti-retroviral, and antimicrobial activities as described by Jismi et al [ 226 ]. Palumbo et al [ 227 ] showed that squid ink contains a significant amount of DA.…”

Section: Marine-based Beneficial Moleculesmentioning

confidence: 99%

Recent Advances in Marine-Based Nutraceuticals and Their Health Benefits

et al. 2020

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The oceans have been the Earth’s most valuable source of food. They have now also become a valuable and versatile source of bioactive compounds. The significance of marine organisms as a natural source of new substances that may contribute to the food sector and the overall health of humans are expanding. This review is an update on the recent studies of functional seafood compounds (chitin and chitosan, pigments from algae, fish lipids and omega-3 fatty acids, essential amino acids and bioactive proteins/peptides, polysaccharides, phenolic compounds, and minerals) focusing on their potential use as nutraceuticals and health benefits.

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