Department of Environmental Planning, Brandenburg University of Technology (BTU), Senftenberg, Germany.
Department of Marine Sciences, University of Lagos, Akoka, Lagos, Nigeria.
Sci Rep. 2023 Aug 11;13(1):13064. doi: 10.1038/s41598-023-38345-w.
Periwinkle shells of Tympanotonus fuscatus, Pachymelania aurita, and Thais coronata were analyzed for their proximate composition, nutritionally significant minerals, trypsin inhibitors, and carotenoids. The mean values obtained were compared using an ANOVA test. The results showed that T. fuscatus had the highest mean moisture content of 0.96 ± 0.14% and a mean value of 0.49 ± 0.13% for crude fibre but was not significantly different (P > 0.05) from P. auritus. The crude protein and fibre content of T. fuscatus was significantly higher (P < 0.05) than other periwinkle samples. T. coronata had the highest mean total ash content and was significantly different (p < 0.05) from other periwinkle samples. T. fuscatus had the highest mean value for Mg (0.32 ± 0.03 mg/kg) and differed significantly (P < 0.05). The mean Ca content of P. aurita was not significantly different (P > 0.05) from that of T. coronata. The mean values of CaCO in T. fuscatus, P. aurita, and T. coronata were 57.20 ± 2.46, 59.50 ± 3.23, and 62.36 ± 1.56 (mg/kg), respectively. T. coronata was significantly different (P < 0.05) from other periwinkle samples. The mean values of carotenoids in T. fuscatus, P. aurita, and T. coronata were 7.17 ± 2.14, 18.00 ± 5.27, and 11.20 ± 3.60 (mg/kg), respectively, and P. aurita was significantly different (P < 0.05) from other periwinkle samples. T. fuscatus and P. aurita had shells with significant amounts of trypsin inhibitor (23.30 ± 4.50 mg/kg and 22.90 ± 14.10 mg/kg, respectively), making them less suitable for livestock feed. In contrast, T. coronata had a lower mean value of 11.80 ± 7.19 mg/kg for trypsin inhibitor, making it an excellent addition to livestock feed. The low crude fibre and fat contents of the periwinkle samples in this study make them suitable for processing complementary foods, especially for hypertensive patients. The high percentage of CaCO in periwinkle shells makes them a probable source used in the production of slurry for chromatography. The findings suggest that periwinkle shells contain specific minerals that can be applied in numerous industries. Increased use of these gastropod shells will result in successful application in product creation and a sustainable bio-circular economy.
鼓贝（Tympanotonus fuscatus）、鲍鱼（Pachymelania aurita）和冠螺（Thais coronata）的贝壳进行了成分分析，包括营养成分、矿物质、胰蛋白酶抑制剂和类胡萝卜素。使用方差分析比较了平均值。结果表明，鼓贝的水分含量最高，平均值为 0.96±0.14%，粗蛋白含量和纤维含量也显著高于其他鼓贝样品，平均值分别为 0.49±0.13%和 2.30±0.14%。冠螺的总灰分含量最高，平均值为 11.80±7.19mg/kg，与其他鼓贝样品差异显著。鼓贝的镁含量最高，平均值为 0.32±0.03mg/kg，与其他鼓贝样品差异显著。鲍鱼的钙含量平均值与冠螺无显著差异（P>0.05）。鼓贝、鲍鱼和冠螺的碳酸钙含量分别为 57.20±2.46、59.50±3.23 和 62.36±1.56mg/kg。冠螺与其他鼓贝样品差异显著。鼓贝、鲍鱼和冠螺的类胡萝卜素含量分别为 7.17±2.14、18.00±5.27 和 11.20±3.60mg/kg，鲍鱼与其他鼓贝样品差异显著。鼓贝和鲍鱼的壳中含有大量的胰蛋白酶抑制剂（23.30±4.50mg/kg 和 22.90±14.10mg/kg），因此不太适合作为家畜饲料。相比之下，冠螺的胰蛋白酶抑制剂含量较低，平均值为 11.80±7.19mg/kg，是家畜饲料的理想选择。本研究中，鼓贝样品的粗纤维和脂肪含量较低，适合加工成补充食品，尤其适合高血压患者。鼓贝壳中碳酸钙的高含量使其成为用于生产用于色谱的泥浆的可能来源。这些研究结果表明，鼓贝壳中含有可应用于多个行业的特定矿物质。增加这些腹足类动物壳的使用将有助于成功应用于产品创造和可持续的生物循环经济。
