Extraction of trypsin enzyme from visceral organs of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) and determination of some functional characteristics

In this study, nutritional composition analysis of internal organs of anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus), trypsin activity determination of trypsin enzyme obtained from internal organs, protein solubility and color values of extracted trypsin parameters examined. Nutritional composition of internal organs: the moisture content of the anchovy internal organs 78.92±0.11 %, the ash 2.26±0.55 %, the protein 10.82±2.05 %, the fat 6.49±0.55 % were estimated. The moisture content of the sardine internal organs 81.07±1.03 %, the ash 0.71±0.04 %, the protein 5.08±2.08 %, the fat 2.01±0.17 % were estimated. Enzyme activity and spesicific activity of anchovy trypsin which are 0.064 U/mg, 0.17 U/ml were estimated, respectively. Enzyme activiy of sardine trypsin as 0.051 U/ml and spesific activity as 0.19 U/mg were estimated. In the enzyme purification step, 13.6 g of 1 kg anchovy and 18.9 g of powder trypsin were obtained from 1 kg sardine.

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Determination of Nutritional Composition of Ackee’s Apple Blighia sapida and Monkey Kola Cola millenii

Earthline Journal of Chemical Sciences ◽

10.34198/ejcs.5121.127136 ◽

2020 ◽

pp. 127-136

Author(s):

Oyetade Joshua Akinropo ◽

Bello Lukman Abidemi ◽

Adesiyan Blessing Adedayo

Keyword(s):

Vitamin C ◽

Moisture Content ◽

Crude Protein ◽

Proximate Analysis ◽

Nutritional Composition ◽

The Other ◽

Mineral Analysis ◽

Crude Fibre ◽

Fruit Samples

The proximate analysis of the fruit sample that homogenously sampled from the wild was taken and quartered to get appreciable weight fit for analysis. Due to it perishable nature the quartered sample for each of the fruit was stored in an air tight container and kept in the refrigerator at a temperature of about 4°C. For the determination of the nutritional composition, parameters which include their proximate, minerals, and vitamin C were quantitatively determined while the anti-nutrient composition were qualitatively and quantitatively analyzed. Compared to ackee’s apple, monkey cola was found to consist of 64.41% moisture content, 1.69% ash, 10.21% crude fibre, 1.25% crude fat, 4.44% crude fibre, 18.06% carbohydrates while ackee’s apple consist of 73.21% moisture, 1.49% ash, 9.38 % crude protein, 13.98% crude fat, 2.08% crude fibre, 0.86% carbohydrates and 4.45% of vitamin C. The mineral analysis for both samples was quantitatively determined using Atomic Absorption spectrophotometer (AAS). The minerals determined for ackee’s apple and monkey cola were magnesium which was 1391.65 ppm, calcium 628.23 ppm, sodium 506.96 ppm, potassium 3976.14 ppm, iron 1.0 ppm, copper 5.00, zinc 4.00, cobalt 3.0 and phosphorus 2616.90 ppm the iron however, was not detected. Ackee’s apple on the other hand, consist of magnesium 498.01 ppm, calcium 478.56 ppm, sodium 398.80 ppm, potassium 4970.18 ppm, copper 2.00, zinc 5.00, cobalt 3.0 and phosphorus 373.84 ppm. The qualitative screening of the anti-nutrients revealed the absence of phenol from both fruit samples while tannins were present only in the monkey cola. The flavonoids, phytic acid and oxalate were quantitatively determined to be 1240 mg, 625 mg and 155 mg for Monkey kola and 640 mg, 340 mg and 65 mg for Ackee’s apple.

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