Obeta N A, Azike G C, Asogwa I S
1Department of Food Science and Technology, College of Food Sciences and Tourism, Michael Okpara University of Agriculture, PMB 7267, Umudike, 440109 Nigeria.
2Present Address: Department of Food Science and Technology, Faculty of Agriculture, University of Nigeria, Nsukka, 4000241 Nigeria.
J Food Sci Technol. 2020 Mar;57(3):832-839. doi: 10.1007/s13197-019-04114-9. Epub 2019 Nov 15.
Fat is a major and important component of biscuits. The effect of substituting hydrogenated fat (HF) with bullet pear fruit pulp (BPFP) on quality characteristic of wheat biscuit was investigated. The pulp was prepared by soaking the fruit in warm water (65 °C) for 30 min, the black coat was scraped out and the pulp used in substituting HF at 0, 25, 50, 75 and 100% levels. Samples were analysed for physicochemical and sensory qualities. The result showed that moisture (5.68-7.0%), proteins (6.91-7.64%), crude fibre (0.47-0.84%) and ash contents (0.80-2.52%) increased ( < 0.05) with increase in BPFP substitution while 100% HF had highest ( < 0.05) score for fat (11.00%) and carbohydrate (76.39%). Result showed that weight (7.72-11.70 g), thickness (0.62-0.99 cm) and width (9.02-11.23 mm) of the biscuit samples significantly increased while spreading ratio and breakability decreased ( < 0.05) with BPFP substitution. Bullet pear pulp substituted biscuits had higher ( < 0.05) range value for vitamin C (2.36-13.15 mg/100 g) and vitamin E (4.07-8.78 mg/100 g). The minerals increased ( < 0.05) with increase in BPFP substitution and ranged from 8.54 to 18.13 mg/100 g (calcium), 6.46 to 25.68 mg/100 g (magnesium), 28.39 to 64.33 mg/100 g (phosphorus), 10.95 to 59.57 mg/100 g (potassium), 1.66 to 8.47 mg/100 g (iron) and 15.50 to 50.12 mg/100 g (sodium). The sensory results showed that 50% substitution of HF with BPFP had no significant difference ( > 0.05) from 100% HF biscuit in all parameters except for taste. Also all the samples were generally accepted by the panellist.
脂肪是饼干的主要且重要的组成部分。研究了用子弹梨果肉(BPFP)替代氢化脂肪(HF)对小麦饼干品质特性的影响。将果实浸泡在65℃温水中30分钟制备果肉,刮去外皮,然后用果肉以0%、25%、50%、75%和100%的比例替代HF。对样品进行了理化和感官品质分析。结果表明,随着BPFP替代量的增加,水分(5.68 - 7.0%)、蛋白质(6.91 - 7.64%)、粗纤维(0.47 - 0.84%)和灰分含量(0.80 - 2.52%)增加(P < 0.05),而100% HF的脂肪(11.00%)和碳水化合物(76.39%)含量最高(P < 0.05)。结果显示,随着BPFP替代量的增加,饼干样品的重量(7.72 - 11.70克)、厚度(0.62 - 0.99厘米)和宽度(9.02 - 11.23毫米)显著增加,而铺展率和易碎性降低(P < 0.05)。用子弹梨果肉替代HF的饼干中维生素C(2.36 - 13.15毫克/100克)和维生素E(4.07 - 8.78毫克/100克)的含量范围更高(P < 0.05)。随着BPFP替代量的增加,矿物质含量增加(P < 0.05),其范围为8.54至18.13毫克/100克(钙)、6.46至25.68毫克/100克(镁)、28.39至64.3毫克/100克(磷)、10.95至59.57毫克/100克(钾)、1.66至8.47毫克/100克(铁)和15.50至50.12毫克/100克(钠)。感官结果表明,除了味道外,用BPFP替代50% HF的饼干在所有参数上与100% HF饼干没有显著差异(P > = 0.05)。而且所有样品总体上都被评审员接受。