Impact of extrusion on the physicochemical parameters of two varieties of corn (<i>Zea mays</i>)

IF 1.9 Q2 AGRICULTURE, MULTIDISCIPLINARY AIMS Agriculture and Food Pub Date : 2023-01-01 DOI:10.3934/agrfood.2023046
Cinthya Calderón, María Quelal, Elena Villacrés, Luis Armando Manosalvas-Quiroz, Javier Álvarez, Nicole Villacis
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Abstract

Ecuador has a significant genetic diversity of maize, which comes in different shapes, sizes and colors and plays a crucial role in food security. This research aimed to evaluate the physicochemical parameters of the extrusion process of two improved maize varieties (INIAP-176 and INIAP-180). The factors under study were two temperatures (140 ℃ and 150 ℃) and two screw speeds (230 rpm and 280 rpm). The applied extrusion conditions showed significant effects on the nutritional content, functional properties, texture attributes and sensory acceptability. The extruded products presented average values of 2.64% moisture, 0.61% ash, 8.54% protein, 0.61% ether extract, 1.55% crude fiber and 88.70 g/100 g were nitrogen-free extract (NFE) about dry weight of sample. Also, extrusion of the two maize varieties at a temperature of 150 ℃ and a screw speed of 280 rpm recorded high values of the expansion index and low levels of bulk density for functional properties. Instrumental texture analysis determined that the best attributes expressed as hardness, fracturability and adhesiveness in the expanded maize obtained from INIAP-176 at a speed of 280 rpm. The application of extrusion in these improved maize varieties allowed the production of high-quality snacks for the consumer.

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挤压对两种玉米品种理化参数的影响(<i>Zea may </i>)
& lt; abstract>厄瓜多尔的玉米遗传多样性显著,形状、大小和颜色各不相同,对粮食安全起着至关重要的作用。本研究旨在评价两个改良玉米品种(INIAP-176和INIAP-180)挤压过程的理化参数。研究了两种温度(140℃和150℃)和两种转速(230 rpm和280 rpm)。挤压条件对其营养成分、功能特性、质地特性和感官接受度有显著影响。挤出产物水分平均值为2.64%,灰分平均值为0.61%,蛋白质平均值为8.54%,粗纤维平均值为1.55%,粗纤维平均值为88.70 g/100 g,为样品干重的无氮提取物。另外,在150℃和280 rpm的转速下挤压,两个玉米品种的膨胀指数较高,而功能性能的堆积密度较低。仪器织体分析表明,在280转/分的转速下,从INIAP-176中获得的膨化玉米的硬度、断裂性和黏附性最好。挤压技术在这些改良玉米品种中的应用,为消费者提供了高质量的零食。& lt; / abstract>
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来源期刊
AIMS Agriculture and Food
AIMS Agriculture and Food AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
3.70
自引率
0.00%
发文量
34
审稿时长
8 weeks
期刊介绍: AIMS Agriculture and Food covers a broad array of topics pertaining to agriculture and food, including, but not limited to:  Agricultural and food production and utilization  Food science and technology  Agricultural and food engineering  Food chemistry and biochemistry  Food materials  Physico-chemical, structural and functional properties of agricultural and food products  Agriculture and the environment  Biorefineries in agricultural and food systems  Food security and novel alternative food sources  Traceability and regional origin of agricultural and food products  Authentication of food and agricultural products  Food safety and food microbiology  Waste reduction in agriculture and food production and processing  Animal science, aquaculture, husbandry and veterinary medicine  Resources utilization and sustainability in food and agricultural production and processing  Horticulture and plant science  Agricultural economics.
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