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Effect of Nitrogen Treatment on the Physico-Chemical and Functional Properties Intermediate Wheatgrass (Thinopyrum intermedium) Grown in Different Locations 氮素处理对不同产地小麦中间草理化及功能性状的影响
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-11-12 DOI: 10.1002/cche.70023
Obed Aduama, Nicole Tautges, Jacob M. Jungers, George Amponsah Annor

Background and Objectives

Intermediate wheatgrass (IWG), a new perennial crop, is being explored for food applications; however, nitrogen application effects on its properties have not been investigated. This study evaluated the effects of applying 90 kg ha−1 of nitrogen in spring or fall seasons on the properties of IWG grown in Minnesota and Wisconsin, USA.

Findings

Nitrogen treatment increased protein and fat content of IWG while reducing total carbohydrates, regardless of location, treatment time, or refinement. Total dietary fiber increased in whole grain samples. Starch hot paste viscosity generally decreased with nitrogen treatment. Farinograph water absorption and dough stability increased with nitrogen fertilization in samples from Wisconsin. IWG kernel size increased with nitrogen application regardless of growing location and timing of treatment.

Conclusion

Nitrogen treatment impacts on IWG properties varied based on growing location, time of application, and whether it was refined or not. While protein and fat contents significantly increased, in the spring season, seed weight was more impacted by fall nitrogen application. Nitrogen treatment also results in strong IWG dough.

Significance and Novelty

This study is the first to show the effect of nitrogen fertilization and timing on the properties of IWG.

背景与目的中间小麦草是一种新的多年生作物,目前正在研究中。然而,氮肥施用对其性能的影响尚未研究。本研究评价了在美国明尼苏达州和威斯康辛州春季和秋季施用90 kg ha - 1氮肥对IWG性状的影响。结果表明,无论处理地点、处理时间或精制程度如何,氮素处理均能提高IWG的蛋白质和脂肪含量,同时降低总碳水化合物含量。全谷物样本中的膳食纤维总量增加。施氮处理后淀粉热糊粘度普遍降低。施氮增加了威斯康辛州样品的面粉吸水率和面团稳定性。籽粒大小随施氮量的增加而增加,与生长地点和处理时间无关。结论氮素处理对菊芋品性的影响因生长地点、施用时间和是否精制而异。虽然蛋白质和脂肪含量显著增加,但在春季,秋季施氮对种子重的影响更大。氮气处理也会使面团变硬。意义与新颖性本研究首次揭示了施氮和施氮时间对IWG性状的影响。
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引用次数: 0
Effects of Xanthan Gum and Carrageenan on Texture and Structural Properties of Highland Barley Protein Gel 黄原胶和卡拉胶对青稞蛋白凝胶质地和结构特性的影响
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-11-12 DOI: 10.1002/cche.70025
Mingze Fu, Yi Zhang, Xiaowei Peng, Jianquan Kan

Background

Highland barley protein (HBP) is a plant-derived protein with a balanced amino acid composition. This study investigated the influence of xanthan gum (XG) and carrageenan (CGN) at varying concentrations (0%–0.5%, w/v) on the gelation properties of HBP.

Results

Both XG and CGN were found to enhance the water-holding capacity and gel strength of HBP gels. Thermogravimetric analysis demonstrated that their addition improved gel thermal stability, while Fourier-transform infrared (FTIR) spectroscopy confirmed that the secondary structure of HBP remained largely unchanged. Protein solubility tests and free thiol measurements revealed that XG and CGN reduced free thiol levels and promoted disulfide bond formation, with disulfide bonds playing a dominant role in the composite gel network. Microscopic observations showed that XG and CGN facilitated HBP aggregation, with CGN exhibiting a stronger aggregation effect.

Conclusion

This study offers critical insights into improving the gelation properties of HBP, establishing a theoretical basis for designing novel food systems incorporating barley protein and diverse colloids.

青稞蛋白(HBP)是一种氨基酸组成平衡的植物源性蛋白。研究了不同浓度(0% ~ 0.5%,w/v)的黄原胶(XG)和卡拉胶(CGN)对HBP胶凝性能的影响。结果XG和CGN均能增强HBP凝胶的持水能力和凝胶强度。热重分析表明,它们的加入提高了凝胶的热稳定性,而傅里叶变换红外(FTIR)光谱证实,HBP的二级结构基本保持不变。蛋白质溶解度测试和游离硫醇测量表明,XG和CGN降低了游离硫醇水平,促进了二硫键的形成,其中二硫键在复合凝胶网络中起主导作用。微观观察表明,XG和CGN有利于HBP的聚集,其中CGN的聚集作用更强。结论本研究为改善HBP的凝胶特性提供了重要的见解,为设计含有大麦蛋白和多种胶体的新型食品体系奠定了理论基础。
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引用次数: 0
Characterization and Functionality of Hot-Press Wheat Tortillas Produced With Soybean Oil-Based Oleogels Structured With Candelilla Wax, Monogylcerides, and Hardfat 以大豆油为基础的油凝胶以小蜡烛蜡、单甘油酯和硬脂肪结构生产的热压小麦玉米饼的特性和功能
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-11-12 DOI: 10.1002/cche.70024
E. Heredia-Olea, E. Pérez-Carrillo, D. Barrera-Arellano, S. O. Serna-Saldívar

Background and Objectives

Wheat flour tortillas made with shortening contain at least 1.3 g of trans fats per serving. The replacement of shortenings should be done with materials that mimic its functionality with identical or better properties that favor consumer health. This study focuses on the use of oleogels based on soybean oil structured with candelilla wax, monoglycerides, and palm hardfat as a substitute for shortening in wheat flour tortillas.

Findings

Tortillas containing oleogels were practically free of trans fats, containing 57%–66% less saturated fats compared to the control. Experimental tortillas were bigger in diameter (143–149 mm against 136 mm) and thinner (1.67–2.41 vs. 2.58 mm) compared to the control. Oleogel tortillas performed better in terms of texture than tortillas produced with shortening, achieving up to 10% less rupture force, 53% more rollability on Day 8, and 11% less final force (retrogradation) in the mixolab profile.

Conclusions

Results indicated that oleogels using the three oleogelators can substitute shortening without detrimental effects on tortilla quality, and soybean-based oleogel tortillas had a better unsaturated/saturated fatty acid ratio, practically free of trans fats.

Significance and Novelty

This is the first time that shortening has been substituted by olegels producing tortillas with similar texture to the original with no trans fats.

背景和目的用起酥油制成的小麦粉玉米饼每份至少含有1.3克反式脂肪。代替起酥油的材料应该具有类似起酥油的功能,具有相同或更好的性能,有利于消费者的健康。本研究的重点是使用以大豆油为基础的油凝胶,以小蜡烛蜡、单甘油酯和棕榈硬脂肪为结构,作为小麦粉玉米饼中起酥油的替代品。发现含有油凝胶的玉米饼几乎不含反式脂肪,与对照组相比,饱和脂肪含量减少了57%-66%。与对照组相比,实验组玉米饼的直径更大(143 ~ 149 mm比136 mm),厚度更薄(1.67 ~ 2.41 mm比2.58 mm)。在质地方面,油凝胶玉米饼比缩短玉米饼表现更好,在mixolab曲线上,破裂力减少了10%,第8天的可卷曲性增加了53%,最终力(退化)减少了11%。结论采用三种油凝胶制备的油凝胶可以替代起酥油,且不会影响玉米粉粉的品质,大豆基油凝胶玉米粉粉具有较好的不饱和/不饱和脂肪酸比例,几乎不含反式脂肪。这是第一次用油脂代替起酥油,生产出的玉米饼质地与原来的玉米饼相似,而且不含反式脂肪。
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引用次数: 0
Apparent Viscosity as a Marker of Wheat Germination and Predictor of Bread Quality and Starch Digestibility 表观粘度作为小麦萌发的标志和面包品质及淀粉消化率的预测因子
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-11-02 DOI: 10.1002/cche.70020
Xiaohang Zou, Nicola Gasparre, Cristina M. Rosell

Background and Objectives

Wheat germination enhances its α-amylase activity affecting the functional properties of flour and bread. Studies reported a variety of germination conditions, which does not allow comparison studies. This study evaluated the impact of germination on wheat flour functionality, breadmaking performance, and nutritional quality using peak viscosity after heating as a marker to control the degree of germination.

Findings

Wheat kernels were germinated until peak viscosity was reduced by 50% compared to control. A strong negative correlation was found between α-amylase activity and peak viscosity (r = −0.84, p < 0.0001), and a strong positive correlation between peak viscosity and falling number (r = 0.98, p < 0.0001), validating the use of peak viscosity as a predictor of enzymatic starch degradation. Bread from fixed time germinated flour showed varying reductions in hardness and chewiness, whereas bread from adjusted germinated flour demonstrated more consistent levels.

Conclusions

Viscosity-adjusted germination effectively controls enzymatic activity and influences both dough handling and bread texture. It also leads to slower starch hydrolysis.

Significance and Novelty

Peak viscosity is proposed as a practical and quantitative marker of wheat germination level. By controlling enzymatic activity through viscosity adjustment, it is possible to optimize bread quality and nutritional outcomes.

背景与目的小麦萌发可提高α-淀粉酶活性,影响面粉和面包的功能特性。研究报告了各种发芽条件,不允许比较研究。本研究以加热后的峰值粘度作为控制萌发程度的标志,评价萌发对小麦粉的功能性、面包制作性能和营养品质的影响。结果小麦籽粒萌发至峰值黏度较对照降低50%。α-淀粉酶活性与峰值粘度之间存在强烈的负相关(r = - 0.84, p < 0.0001),峰值粘度与下降数之间存在强烈的正相关(r = 0.98, p < 0.0001),验证了峰值粘度作为酶淀粉降解的预测因子的使用。用固定时间发芽的面粉制成的面包在硬度和嚼劲上有不同程度的降低,而用调整时间发芽的面粉制成的面包则表现出更一致的水平。结论粘度调节发芽率可有效控制酶活性,影响面团处理和面包质地。它还会导致淀粉水解速度变慢。提出了峰值粘度作为小麦萌发水平的实用定量指标的意义和新颖性。通过调节粘度来控制酶活性,可以优化面包的质量和营养效果。
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引用次数: 0
Effects of Modified Wheat Bran Insoluble Dietary Fiber on Properties of Starch and Protein 改性麦麸不溶性膳食纤维对淀粉和蛋白质特性的影响
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-29 DOI: 10.1002/cche.70021
Xiaoxue Fang, Runjia Liu, Hua Li, Fengyan Zhai, Qingyuan Wang, Beibei Zhao, Lulu Zhang

Background and Objectives

With the rise of healthy eating, fiber-rich foods are gaining more attention. Insoluble dietary fiber (IDF) is widely used for its physiological benefits and nutritional value. However, it can negatively affect food quality, which limit its application. This study aims to enhance wheat bran IDF′s processing properties through modification (alkaline hydrogen peroxide treatment, hydroxypropylation, and esterification) and explore how native and modified IDF influence the characteristics of wheat starch and protein.

Findings

DSC and RVA results showed that IDF reduced ΔH, improved thermal stability, and inhibited starch retrogradation, with effects strengthening as IDF content increased. IDF lowered freeze–thaw stability, modification can reduce water precipitation. Upon IDF addition, disulfide bond (S─S) and β-sheet content first increased then decreased, while β-turn content first declined then rose. CIDF achieved the greatest starch order and double helix structure, along with the highest S─S content, at 5% addition, whereas modified IDF performed best at 10%.

Conclusion

Modification can improve the processing performance of IDF and increase its addition amount in flour-based products.

Significance and Novelty

This study provides a theoretical basis for the development of dietary fiber products and functional foods.

背景与目的随着健康饮食的兴起,富含纤维的食物越来越受到人们的关注。不溶性膳食纤维(IDF)因其生理效益和营养价值而被广泛应用。然而,它会对食品质量产生负面影响,这限制了它的应用。本研究旨在通过改性(碱性过氧化氢处理、羟丙基化和酯化)提高麦麸IDF的加工性能,探讨天然和改性的IDF对小麦淀粉和蛋白质特性的影响。结果DSC和RVA结果表明,IDF降低了ΔH,提高了淀粉的热稳定性,抑制了淀粉的降解,并且随着IDF含量的增加,其作用增强。IDF的冻融稳定性降低,改性可以减少水分的沉淀。添加IDF后,二硫键(S─S)和β-sheet含量先升高后降低,β-turn含量先降低后升高。当添加量为5%时,CIDF淀粉有序度和双螺旋结构最高,S─S含量最高,而添加量为10%时,改性IDF淀粉有序度和双螺旋结构最高。结论改性可以改善IDF的加工性能,增加其在面粉制品中的添加量。本研究为膳食纤维产品和功能食品的开发提供了理论依据。
{"title":"Effects of Modified Wheat Bran Insoluble Dietary Fiber on Properties of Starch and Protein","authors":"Xiaoxue Fang,&nbsp;Runjia Liu,&nbsp;Hua Li,&nbsp;Fengyan Zhai,&nbsp;Qingyuan Wang,&nbsp;Beibei Zhao,&nbsp;Lulu Zhang","doi":"10.1002/cche.70021","DOIUrl":"https://doi.org/10.1002/cche.70021","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background and Objectives</h3>\u0000 \u0000 <p>With the rise of healthy eating, fiber-rich foods are gaining more attention. Insoluble dietary fiber (IDF) is widely used for its physiological benefits and nutritional value. However, it can negatively affect food quality, which limit its application. This study aims to enhance wheat bran IDF′s processing properties through modification (alkaline hydrogen peroxide treatment, hydroxypropylation, and esterification) and explore how native and modified IDF influence the characteristics of wheat starch and protein.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Findings</h3>\u0000 \u0000 <p>DSC and RVA results showed that IDF reduced Δ<i>H</i>, improved thermal stability, and inhibited starch retrogradation, with effects strengthening as IDF content increased. IDF lowered freeze–thaw stability, modification can reduce water precipitation. Upon IDF addition, disulfide bond (S─S) and β-sheet content first increased then decreased, while β-turn content first declined then rose. CIDF achieved the greatest starch order and double helix structure, along with the highest S─S content, at 5% addition, whereas modified IDF performed best at 10%.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Modification can improve the processing performance of IDF and increase its addition amount in flour-based products.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Significance and Novelty</h3>\u0000 \u0000 <p>This study provides a theoretical basis for the development of dietary fiber products and functional foods.</p>\u0000 </section>\u0000 </div>","PeriodicalId":9807,"journal":{"name":"Cereal Chemistry","volume":"102 6","pages":"1079-1087"},"PeriodicalIF":2.5,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145487092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Microwave Treatment on Functional Characteristics of Finger Millet for the Development of Millet Cake 微波处理对小米功能特性的影响及对小米饼制作的影响
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-27 DOI: 10.1002/cche.70019
Yogesh Kumar, Swarnima Dey, Avvaru Swetha

Background and Objectives

Finger millet, an underutilized grain, is rich in nutrients and bioactive compounds, but requires innovative processing techniques to enhance its functional properties and antioxidant activity. This study aimed to optimize the microwave processing conditions (power: 600–1200 W, time: 5–15 min) using Central Composite Rotatable Design (CCRD) to maximize antioxidant activity while improving functional properties such as bulk density, swelling capacity, dispersibility, gelation, and RSA. The optimized finger millet was further utilized to develop a millet-based cake, which was evaluated for proximate composition, sensory attributes, texture analysis, pH, acidity, and antioxidant activity.

Findings

Optimization results indicated that microwave processing at 440 W for 5 min yielded the highest antioxidant activity and enhanced functional properties of finger millet. The optimized millet-based cake showed higher crude fiber (59.7%), crude fat (10.5%), moisture content (40%), and ash (36.66%) compared to the control sample. Sensory evaluation revealed that the millet-based cake had superior acceptability in terms of texture, taste, and overall preference compared to the control. Additionally, pH, acidity, and textural properties were also found to be within acceptable ranges.

Conclusions

The study demonstrated that microwave processing significantly enhances the functional and antioxidant properties of finger millet. The optimized millet was successfully incorporated into a nutrient-rich bakery product (cake), indicating its potential for value addition and commercial application in the food industry.

Significance and Novelty

This study highlights the efficacy of microwave processing as an innovative technique for improving the nutritional and functional qualities of underutilized grains. The study provides a scientific basis for utilizing finger millet in bakery applications, thereby promoting millet-based value-added products for better health benefits and broader market acceptance.

背景与目的谷子是一种未被充分利用的谷物,具有丰富的营养成分和生物活性化合物,但需要创新的加工技术来提高其功能特性和抗氧化活性。本研究旨在利用中心复合旋转设计(CCRD)优化微波处理条件(功率:600-1200 W,时间:5-15 min),以最大限度地提高抗氧化活性,同时改善堆密度,膨胀容量,分散性,凝胶化和RSA等功能特性。利用优化后的手指小米制作小米饼,并对其近似成分、感官属性、质地分析、pH值、酸度和抗氧化活性进行了评价。结果优化结果表明,440 W微波处理5 min可获得最高的抗氧化活性和增强的功能特性。优化后的米饼粗纤维含量(59.7%)、粗脂肪含量(10.5%)、水分含量(40%)、灰分含量(36.66%)均高于对照。感官评价显示,与对照组相比,以小米为基础的蛋糕在质地、味道和整体偏好方面具有优越的可接受性。此外,pH值、酸度和质地也在可接受的范围内。结论微波处理能显著提高指粟的功能性和抗氧化性。将优化后的小米成功地制成了营养丰富的烘焙产品(蛋糕),表明其在食品工业中的增值和商业应用潜力。本研究强调了微波加工作为一种创新技术在改善未充分利用的谷物的营养和功能品质方面的有效性。本研究为手指小米在烘焙中的应用提供了科学依据,从而促进以小米为基础的增值产品获得更好的健康效益和更广泛的市场接受度。
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引用次数: 0
Incorporating Whole Pulse Flour From Cowpea, Navy Bean, and Red Bean in Whole Wheat Flour Bread 在全麦面粉面包中加入来自豇豆、海军豆和红豆的全脉冲面粉
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-23 DOI: 10.1002/cche.70018
Bipin Rajpurohit, Michael Tilley, Xiaorong Wu, Yonghui Li

Background and Objectives

In recent years there has been an increase in consumption of pulse ingredients due to their availability, sustainability, and nutritional value. There is great potential to incorporate whole pulse flour in whole wheat bread to increase the protein content and enhance the amino acid profile. This study investigated the effects of incorporating different levels (5%, 10%, and 15%) of whole pulse flour from red bean, navy bean, and cowpea on the quality of whole wheat bread.

Findings

In general, incorporation of pulses increased the protein content and water-holding capacity of the composite flours with a statistically significant increase in protein content for all levels of navy bean flour and 15% cowpea flour. Within each pulse type, increasing the level of incorporation decreased the dough strength and the water absorption for optimum dough consistency. All the pulse types and levels decreased the specific loaf volume except for 5% navy bean incorporation. Incorporation of whole red bean flour and whole navy bean flour up to 10% and cowpea up to 5% did not significantly affect the hardness and springiness of the bread. Sensory analysis of whole wheat bread prepared with the various treatments of whole navy bean flour showed overall acceptability similar to the control bread for all levels of incorporation.

Conclusion

Overall, whole navy bean flour substitution up to 10% was found to be most favorable with least deleterious effects on bread loaf volume, texture, and sensory attributes and the potential to make the bread crumb color lighter.

Significance and Novelty

Our study found that substituting up to 10% of commercial whole wheat flour with whole navy bean flour was more favorable. This substitution has the potential to increase protein content and crumb lightness, while having the least negative effect on bread quality, and overall sensory acceptability similar to control bread.

背景和目的近年来,由于其可获得性、可持续性和营养价值,脉冲成分的消费量有所增加。在全麦面包中加入全脉冲面粉可以提高蛋白质含量和改善氨基酸谱。本研究考察了加入不同水平(5%、10%和15%)的红豆、海军豆和豇豆全脉冲面粉对全麦面包质量的影响。总的来说,豆类的加入提高了复合面粉的蛋白质含量和持水能力,在所有水平的海军蓝豆粉和15%的豇豆粉中,蛋白质含量都有统计学上的显著提高。在每种脉冲类型中,增加掺入水平会降低面团强度和吸水性,以获得最佳的面团稠度。除加入5%海军蓝豆外,所有脉冲类型和水平均降低了面包的比体积。添加10%的全红豆和全海军蓝豆粉和5%的豇豆对面包的硬度和弹性没有显著影响。对全海军蓝豆粉进行各种处理的全麦面包的感官分析表明,在所有掺入水平下,全麦面包的总体可接受性与对照面包相似。综上所述,添加10%的全海军蓝豆粉对面包的体积、质地和感官属性的影响最小,对面包屑的颜色也有可能变浅。我们的研究发现,用全海军蓝豆粉代替高达10%的商业全麦面粉是更有利的。这种替代有可能增加蛋白质含量和面包屑轻度,同时对面包质量的负面影响最小,整体感官接受度与对照面包相似。
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引用次数: 0
Bake-Off Technology (BOT) of Par-Baked Burger Buns: Thermal, Microstructure, Microbial, and Quality Properties During Frozen Storage 半焙汉堡面包的烘烤技术(BOT):冷冻期间的热、微观结构、微生物和质量特性
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-22 DOI: 10.1002/cche.70016
Ashwath Kumar K., Sudha M. L., Roopavathy C., Akhilasri P., Crassina Kasar, P. Prabhasankar

Background

This study investigated the impact of par-baking and frozen storage time on the quality of par-baked burger buns to analyze the feasibility of producing burger buns through bake-off technology. The effect of additives (guar gum and barley malt) on the baking performance, microstructure, thermal properties, and microbial safety during storage is evaluated.

Results

The optimum baking conditions for par-baked burger buns was 8 min of first baking and a re-baking time of 7 min (second baking) at 210°C. The par-baked burger buns were stored (at −18°C, 90 days), withdrawn at an interval of 15 days, re-baked and its quality characteristics were evaluated. The use of additives positively impacted the product quality, stabilised the water activity and prevented significant reduction of specific volume during storage. The extent of increase in hardness and decrease in springiness was greater in the control than additive burger buns. On the 45th and 90th day, the internal microstructure of the par-baked burger bun with additives was more continuous with a film-like coating on embedded granules, suggesting the protective function of guar gum.

Conclusions

The results confirmed that it is possible to extend the shelf-life of a burger bun through the use of the par-baking technique and frozen storage method, which helps the bakery industry to meet the evolving market demand.

本研究考察了烘烤时间和冷冻保存时间对烘烤汉堡面包质量的影响,分析了烘烤技术生产汉堡面包的可行性。评价了添加剂(瓜尔胶和大麦麦芽)对烘焙性能、微观结构、热性能和储存期间微生物安全性的影响。结果半焙汉堡包的最佳烘焙条件为第一次烘焙8 min,第二次烘焙7 min,温度为210℃。在- 18°C保存90天,每隔15天取出一次,重新烘焙并评价其质量特征。添加剂的使用对产品质量产生了积极的影响,稳定了水活性,防止了储存过程中比容的显著减少。对照汉堡面包的硬度增加和弹性降低的程度大于添加剂汉堡面包。添加添加剂后,第45天和第90天的汉堡包内部微观结构更加连续,包埋颗粒上有一层膜状涂层,说明瓜尔胶具有保护作用。结论利用半焙技术和冷冻贮藏法延长汉堡面包的保质期是可能的,这有助于面包行业满足不断变化的市场需求。
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引用次数: 0
Comparison of Three Methods to Isolate Starch From Waxy Sorghum Grains 高粱糯粒淀粉三种分离方法的比较
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-16 DOI: 10.1002/cche.70017
Ying Huang, Xiaorong Wu, Scott R. Bean, Yong-Cheng Shi

Background and Objectives

Waxy sorghum contains essentially only amylopectin in its endosperm starch and has unique properties that could be potentially used in value-added food ingredients as an effective thickener. The objectives of this study were to develop an efficient process for isolating starch from waxy sorghum grains using alkaline protease and to compare the properties of starches isolated by enzymatic methods with that of starches isolated by the traditional wet milling method. Two starch isolation methods based on protease treatment were developed using whole and decorticated waxy sorghum grains. Those two methods were compared with a traditional wet milling method to evaluate the efficiency of the isolation process and properties of the starches isolated, including starch recovery, yield, residual protein, ash content, damaged starch content, color, as well as pasting and thermal properties.

Findings

Starch recovery showed no statistical differences among the three methods, and all isolated starches exhibited desired purity regardless of the method employed. However, enzymatic treatment methods not only produced starches with lower residual protein (0.18%–0.22%) but also resulted in significantly greater peak (1992–2023 cP), breakdown (1123–1172 cP), and setback viscosities (275–355 cP) compared with the waxy sorghum starch isolated by the wet milling. The starches isolated by wet milling and enzymatic treatment of decorticated sorghum exhibited similar onset and peak gelatinization temperatures, while both methods produced starches with better color quality (higher L*, lower b*) compared to starches isolated from whole sorghum using the enzymatic treatment.

Conclusion

Enzymatic treatment of decorticated sorghum could be used as an effective method for starch isolation at the laboratory scale, with promising potential for application in industrial-scale processes.

Significance and Novelty

An efficient process was developed for isolating waxy sorghum starch, providing a sustainable alternative to wet milling by balancing processing efficiency and starch quality while maintaining high starch recovery.

背景与目的蜡质高粱的胚乳淀粉中基本上只含有支链淀粉,具有独特的特性,可以作为有效的增稠剂用于增值食品配料。本研究的目的是开发一种利用碱性蛋白酶从糯高粱籽粒中分离淀粉的高效工艺,并比较酶法分离的淀粉与传统湿磨法分离的淀粉的特性。研究了两种基于蛋白酶处理的淀粉分离方法,分别以整粒和去皮糯高粱籽粒为原料。将这两种方法与传统湿磨法进行比较,评价分离过程的效率和分离出的淀粉的性能,包括淀粉回收率、得率、残蛋白、灰分含量、受损淀粉含量、颜色、糊化性能和热性能。淀粉回收率在三种方法中无统计学差异,无论采用哪种方法,分离的淀粉都具有理想的纯度。然而,与湿磨法分离的高粱蜡质淀粉相比,酶法处理的淀粉不仅蛋白残留量(0.18% ~ 0.22%)较低,而且峰值(1992 ~ 2023 cP)、分解(1123 ~ 1172 cP)和挫折粘度(275 ~ 355 cP)显著提高。湿磨法和酶促法分离的去皮高粱淀粉具有相似的起始温度和峰值糊化温度,且两种方法分离的淀粉比酶促法分离的全高粱淀粉具有更好的颜色质量(L*较高,b*较低)。结论对去皮高粱进行酶处理是一种有效的分离淀粉的方法,在工业生产中具有广阔的应用前景。开发了一种高效的分离高粱蜡淀粉的工艺,在保持高淀粉回收率的同时,平衡了加工效率和淀粉质量,为湿法淀粉的分离提供了可持续的选择。
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引用次数: 0
Phenolic Composition and Antioxidant Activity in Hulless Barley Grass: Effect of Harvesting Frequency and Planting Environments 大麦草酚类成分及抗氧化活性:采收频率和种植环境的影响
IF 2.5 4区 农林科学 Q3 CHEMISTRY, APPLIED Pub Date : 2025-10-13 DOI: 10.1002/cche.70014
Xinyu Zhang, Zeyang Wang, Zhongquan Sui, Harold Corke

Background and Objectives

Hulless barley grass is rich in phenolic compounds. Yield-optimized cultivation methods, including frequent harvesting and plant factory production, may affect these bioactive compounds, requiring systematic evaluation.

Materials/Methods

Two hulless barley varieties, Nanlonggela and Qinghaihuang, were cultivated in a natural field and a controlled-environment plant factory. The field-grown hulless barley grass was harvested three times. Phenolic content, antioxidant activity, and composition were determined across all samples.

Results and Conclusion

Total phenolic content of second harvest extracts (N-2, Q-2) was 1.45 and 1.71 times higher, respectively, while total flavonoid content was 1.39 and 1.92 times higher than the first harvest (N-1, Q-1). The second and third harvests showed higher antioxidant activity than the first harvest. FRAP values for N-2 and Q-2 were 1.36 and 1.04 times higher than N-1 and Q-1, respectively. Plant factory-grown Nanlonggela and Qinghaihuang extracts exhibited FRAP values of 201 ± 9.6 μmol TE/mg GAE and 141 ± 9.5 μmol TE/mg GAE, respectively, which were lower than those from the field. HPLC and UPLC-Q-TOF/MS identified the main phenolic compounds in Nanlonggela as 3-O-[β-D-glucopyranosyl-(1 → 2)]-β-D-glucopyranosyl-kaempferol and 7-O-α-L-rhamnosyl-3-O-β-D-glucopyranosyl-kaempferol, and in Qinghaihuang as (-)-suspensaside B, schinicoumarin, and apigenin-6-C-glucosylglucoside.

Significance

This study supported cultivation of high-quality hulless barley grass to facilitate functional product development.

背景与目的大麦草富含酚类化合物。产量优化的栽培方法,包括频繁收获和植物工厂生产,可能会影响这些生物活性化合物,需要系统评估。材料/方法以南龙格拉和青海黄2个无壳大麦品种为研究对象,在自然大田和环境控制植物工厂进行栽培。田间种植的无壳大麦草收获了三次。测定了所有样品的酚含量、抗氧化活性和成分。结果与结论第二次采收提取物(N-2、Q-2)总酚含量分别是第一次采收提取物(N-1、Q-1)的1.45倍和1.71倍,总黄酮含量分别是第一次采收提取物(N-1、Q-1)的1.39倍和1.92倍。第二次和第三次收获的抗氧化活性高于第一次收获。N-2和Q-2的FRAP值分别是N-1和Q-1的1.36倍和1.04倍。植物工厂培养的南龙拉和青海黄提取物的FRAP值分别为201±9.6 μmol TE/mg GAE和141±9.5 μmol TE/mg GAE,均低于田间提取的FRAP值。HPLC和UPLC-Q-TOF/MS鉴定南龙葵中主要酚类化合物为3-O-[β- d -葡萄糖吡喃基-(1→2)]-β- d -葡萄糖吡喃基-山奈酚和7-O-α- l-鼠李糖基-3-O-β- d -葡萄糖吡喃基-山奈酚,青海黄中主要酚类化合物为(-)-悬浮液B、香豆素和芹菜素-6- c -葡萄糖基糖苷。意义本研究为优质无壳大麦草的培育提供支持,促进功能性产品的开发。
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引用次数: 0
期刊
Cereal Chemistry
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