Novel application of an optical inspection system to determine the freshness of (mackerel) stored at a low temperature.

This study evaluated the use of an optical inspection system (OIS) to determine the freshness of mackerel (). The correlations between the light reflection intensity (LRI) of mackerel eyes (determined using an OIS) and the volatile basic nitrogen content (VBN) and K-value were analyzed. After unloading at the harbor, the mackerel were stored at 4 °C for 9 days and the VBN, K-value, and LRI were determined at 3-day intervals.

Anti-Inflammatory Effects of Grasshopper Ketone from Ethanol Extract on Lipopolysaccharide-Induced Inflammatory Responses in RAW 264.7 Cells.

This study evaluated the anti-inflammatory potential of a grasshopper ketone (GK) isolated from the brown alga on lipopolysaccharide (LPS)-induced RAW 264.7 murine macrophage cell line. GK was isolated and purified from the -hexane fraction and its structure was verified on the basis of NMR spectroscopic data.

Immune-enhancement effects of tuna cooking drip and its enzymatic hydrolysate in Balb/c mice.

Tuna cooking drip (TCD) is a protein rich by-product of canned tuna processing that is typically discarded. In this study, the immune-enhancing activities of TCD and its enzymatic hydrolysate (EH-TCD) were investigated by intraperitoneally administering Balb/c male mice with TCD and EH-TCD for 2 weeks. This administration resulted in an increase in the weight of the spleen and thymus (200-800 mg/kg) and enhanced the proliferation rates of splenocytes (200-800 mg/kg).

In vivo and in vitro inhibitory activity of an ethanolic extract of Sargassum fulvellum and its component grasshopper ketone on atopic dermatitis.

The present study investigated the effect of Sargassum fulvellum ethanol extract (SFEE) on 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD)-like skin lesions in BALB/c mice. The severity of skin dermatitis, production of cytokines, and total IgE content were measured, and the histopathological features were analyzed. SFEE decreased the severity of DNCB-induced dermatitis and suppressed the serum levels of total immunoglobulin E (IgE), tumor necrosis factor (TNF)-α, and interleukin (IL)-4.

Skipjack tuna (Katsuwonus pelamis) eyeball oil exerts an anti-inflammatory effect by inhibiting NF-κB and MAPK activation in LPS-induced RAW 264.7 cells and croton oil-treated mice.

The effect of tuna eyeball oil (TEO) on lipopolysaccharide (LPS)-induced inflammation in macrophage cells was investigated. TEO had no cytotoxicity in cell viability as compared to the control in LPS induced RAW 264.7 cells.

Anti-inflammatory activity of ethanolic extract from skipjack tuna () heart in LPS-induced RAW 264.7 cells and mouse ear edema model.

This study investigated the anti-inflammatory activity of the ethanolic extract (THEE) obtained from the heart of skipjack tuna using lipopolysaccharide (LPS)-induced RAW 264.7 cells. THEE markedly suppressed the production of nitric oxide (NO), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and IL-1β in a dose-dependent manner.

Inhibitory effect of hexane fraction from Myagropsis myagroides on pancreatic α-amylase in vitro.

A Myagropsis myagroides (Mm) methanol extract showed α-amylase inhibitory activity of 13% at a concentration of 5 mg/ml. Results showed that the hexane fraction from the Mm methanol extract exhibited α-amylase inhibitory activity with an IC50 value of 4.24 mg/ml.

Anti-inflammatory activity of methanol extract and n-hexane fraction mojabanchromanol b from Myagropsis myagroides.

Aims: This study was carried out to verify the anti-inflammatory effect of methanol extract from Myagropsis myagroides (MMME) and its n-hexane fraction mojabanchromanol b.

Main Methods: The murine macrophages Raw264.7 cells were used.

Lipase inhibitory activity of chlorophyll a, isofucosterol and saringosterol isolated from chloroform fraction of Sargassum thunbergii.

Three compounds (chlorophyll a, isofucosterol and saringosterol) were isolated from chloroform fraction of Sargassum thunbergii extract. The three compounds had two- to fourfold lower lipase inhibitory activity than that of the CHCl3:MeOH (C:M) (100:1) fraction (fraction I, 83.78% at 1 mg/mL).

Inhibitory effects of brown algae extracts on histamine production in mackerel muscle via inhibition of growth and histidine decarboxylase activity of Morganella morganii.

This study was performed to investigate the inhibitory effects of brown algae extracts on histamine production in mackerel muscle. First, antimicrobial activities of brown algae extracts against Morganella morganii were investigated using a disk diffusion method. An ethanol extract of Ecklonia cava (ECEE) exhibited strong antimicrobial activity.

Effects of Chicken Breast Meat on Quality Properties of Mackerel (Scomber japonicus) Sausage.

This study was performed to evaluate the effects of chicken breast meat on the quality of mackerel sausages. The mackerel sausages were manufactured by additions of 5%, 7%, and 10% of chicken breast meat. The lightness of mackerel sausages showed no significant differences between the control and addition groups.

Anti-inflammatory activity of ethanolic extract of Sargassum micracanthum.

The anti-inflammatory effects of Sargassum micracanthum ethanol extract (SMEE) was investigated using LPS-induced inflammatory response in this study. As a result, there was no cytotoxicity in the macrophage proliferation treated with SMEE compared with the control. SMEE inhibited production of nitric oxide and cytokines (IL-6, TNF-α, and IL-1β) in a dose-dependent manner.