Optimization of Extrusion Process Parameters of Recycled High-Density Polyethylene-Thermoplastic Starch Composite for Fused Filament Fabrication

High-density poly-ethylene (HDPE) is a nonbiodegradable recyclable plastic which is widely utilized in single use packaging applications. Consequently, it constitutes a significant amount of plastic waste found in landfills. From literature, it has been shown that parts produced using composites of HDPE with carbohydrate-based polymers, such as thermoplastic starch (TPS), experience mechanical degradation through hydrolytic degradation process. The possible utilization of recycled-HDPE (rHDPE) and TPS composite in nonconventional manufacturing processes such as Fused filament fabrication (FFF) has however not been explored. This study explores the potential application of rHDPE and TPS composites in FFF and optimizes the extrusion process parameters used in rHDPE-TPS filament production process. Taguchi method was utilized to analyze the extrusion process. The extrusion process parameters studied were the spooling speed, extrusion speed and the extrusion temperatures. The response variable studied was the filament diameter. In this research, the maximum TPS content achieved during filament production was 40 wt%. This filament was however challenging to use in FFF printers due to frequent nozzle clogging. Printing was therefore done with filaments that contained 0 - 30 wt% TPS. The experimental results showed that the most significant parameter in extrusion process was the spooling speed, followed by extrusion speed. Extrusion temperature had the least significant influence on the filament diameter. It was observed that increase in TPS content resulted in reduced warping and increased rate of hydrolytic degradation. Mechanical properties of printed parts were investigated and the results showed that increasing TPS content resulted in reduction in tensile strength, reduction in compression strength and increase in stiffness. The findings of this research provide valuable insights to plastic recycling industries and researchers regarding the utilization of recycled HDPE and TPS composites as substitute materials in FFF.

The difference of soluble sugar contents and starch synthetic key enzyme activities between high and low starch cultivar of cassava

The difference of soluble sugar contents and starch synthetic key enzyme activities between high starch cultivar and low starch cultivar were studied in this experiment, of which FuXuan01, GR891, SC124, and SC201 were used as materials. The results showed that the contents of reducing sugar in root tube of low starch cultivars were higher than those of high starch cultivars in all growth periods, the contents of sucrose in root tube of high starch cultivar were higher than those of low starch cultivars in the early growth period, but, lower in the late growth period, and there were almost no difference in the contents of soluble sugar in root tube between high starch cultivar and low starch cultivar in the early growth period, but notable difference in the late growth period and the soluble sugar contents of low starch cultivars were higher than those of high starch cultivars. It also-showed that the activities of ADPGPpase, SSS, and SBE （starch branching enzyme） of high starch cultivars were higher than those of low starch cultivars. It was evident that there were close correlations between the content of sucrose, reducing sugar and soluble sugar in root tube, and the activities of ADPGPpase, SSS, SBE, and the starch accumulation in the root tubers of cassava. It was quite evident in this experiment that the soluble sugar and starch synthetic key enzyme were main factors controlling starch accumulation in root tubers. These results provided important indication for physiological controlling in high starch cultivation and gene engineering breeding of high starch cultivar of cassava.

Insights into the swelling process and drug release mechanisms from cross-linked pectin/high amylose starch matrices

Cross-linked pectin/high amylose mixtures were evaluated as a new excipient for matrix tablets formulations,since the mixing of polymers and cross-linking reaction represent rational tools to reach materials with modulated and specific properties that meet specific therapeutic needs.Objective:In this work the influence of polymer ratio and cross-linking process on the swelling and the mechanism driving the drug release from swellable matrix tablets prepared with this excipient was investigated.Methods:Cross-linked samples were characterized by their micromeritic properties(size and shape,density,angle of repose and flow rate)and liquid uptake ability.Matrix tablets were evaluated according their physical properties and the drug release rates and mechanisms were also investigated.Results:Cross-linked samples demonstrated size homogeneity and irregular shape,with liquid uptake ability insensible to pH.Cross-linking process of samples allowed the control of drug release rates and the drug release mechanism was influenced by both polymer ratio and cross-linking process.The drug release of samples with minor proportion of pectin was driven by an anomalous transport and the increase of the pectin proportion contributed to the erosion of the matrix.Conclusion:The cross-linked mixtures of high amylose and pectin showed a suitable excipient for slowing the drug release rates.

Effect of Ultra High Pressure Processing on the Particle Characteristics of Lotus-seed Starch

In this paper, the time dependent effects of various pressure treatments on the characteristics of lotus-seed starch which was modified by ultra-high pressure （UHP） were investigated. The results showed that the polarization cross of lotus-seed starch granules was weakening gradually with increasing the treatment time, which indicated the termination of their ordered crystallite structures. The morphologies of granules were collapsed once the UHP was kept at 500 MPa for 60 minutes. The particle size analysis demonstrated that the granule size and distribution of lotus-seed starches increased as the treatment time was prolonged. X-ray diffraction studies showed that the intensity of the feature diffraction peaks of starch decreased and eventually disappeared with increasing the treatment time, and B-type transformation pattern was observed. The Fourier transform infrared spectra （FTIR） analysis of starch showed that the UHP is a physical modification processing because no new groups formed. The research showed that UHP processing at certain degree is capable to achieve the modification of lotus-seed starch. It is of significance for the deep processing of lotus-seed products.

Structural, Pasting, and Thermal Properties of Ultra-high Pressure-treated Lotus Seed Starch

Lotus seed starch （15%, w/w） was subjected to ultra-high pressure （UHP） at 500 MPa for 10～60 min. The effects of UHP on the structural, pasting, and thermal properties of starch were investigated using solid-state 13C CP/MAS NMR, differential scanning calorimetry （DSC）, HPSEC-MALLS-RI, and a rapid visco analyzer. The 13C CP/MAS NMR results revealed a reduction in the relative crystallinity and peak intensity of the crystalline state with increasing the UHP time. The molecular weight of native starch was 1.433 × 107 Da, which was higher than that of the UHP-treated starch. Viscograms of UHP-treated starch revealed an increase in paste viscosity, peak time, and pasting temperature and a reduction in breakdown and setback viscosity compared to the native starch. Furthermore, the DSC results showed a reduction in gelatinization temperature and gelatinization enthalpy with increasing the UHP time.

Effect of high temperature on the expressions of genes encoding starch synthesis enzymes in developing rice endosperms

High temperature is the major environmental factor affecting grain starch properties of cooking rice cultivars. In this study, two non-waxy indica rice genotypes, cv. 9311 and its mutant with extremely high amylose phenotype（9311eha） were used to study the differential expressions of genes in starch synthesis and their responses to high temperature（HT）. Significant increase in apparent amylose content and hot-water-soluble starch content in mutant 9311 eha were genetically caused by a substitution from AGTTATA to AGGTATA at the leader intron 5′ splice site in Wx gene. This mutation resulted in different m RNA transcript levels, m RNA splicing efficiencies and protein levels of Wx between the two rice genotypes, which also lead to the genotype-dependent alteration in the temporal pattern of Wx transcription and granule-bound starch synthase（GBSS） activity in response to HT. However, changes in the activities of other starch synthesizing enzymes and their expressions of distinct isoform genes were not significant with the Wx gene mutation, thus only minor difference in the particle size of starch granule, chain-length distribution and gelatinization enthalpy were found between the two genotypes. The temporal-specific expression of multiple isoform genes responsive to different temperature regiments indicated that the reduction of GBSS transcript expression under HT was generally accompanied by the decreased expressions of SSSIIa, SSSIIIa and SBEIIb. Consequently, high temperature-ripened grains in 9311 eha showed high proportion of intermediate and long B chains and somewhat lower level of short A chain compared to the wildtype. The temperature-dependent alteration of amylose content was not only attributed to the reduced expression of GBSS, but also associated with the complimentary effect of SSSIIa and SBEIIb.

STDUY ON RETENTION AND DRAINAGE PROPERTIES OF THE HIGH SUBSTITUTED DEGREE CATIONIC STARCH

This paper deals with the retention and drainage properties of the high substituted degree cationic starch (HCS) prepared by half-dry process. The experiments show that HCS has remarkable effects on filler retention and drainage in papermaking industry. With the degree of substitution (DS) of HCS increasing, the effects on filler retention and drainage increase. When the DS of HCS is 0.509 and the dosage is 0.08%, the freeness decreases about 12oSR and the filler retention is 79.82%.

The Effect of High Temperature after Anthesis on Rice Quality and Starch Granule Structure of Endosperm

To ascertain the effect mechanism of high temperature after anthesis on rice quality, the experiment was conducted with two rice lines, the heat-tolerant line 996 and heat-sensitive line 4628, with high temperature and optimal temperature in the growth chamber to investigate the effect of high temperature stress after anthesis on rice appearance quality, milling quality, cooking and eating quality and starch granule structure of endo- sperm. The result showed that milled rice rate, head rice rate, amylose content and gel consistency of both lines decreased under high temperature stress after anthesis, while the ratio of grain length to width, chalky rate, chalkiness, protein content increased. Under high temperature treatments, gelatinization temperature, final viscosity, set back and peak time increased, breakdown decreased, Mg content and K content increased, Mg/K ra- tio decreased. Under same treatment, the extent of rice quality of heat tolerant line 996 affected by high temperature was lower than that of heat sensitive line 4628. Under high temperature stress after anthesis, starch granule arranged untightly, most of starch granules existed in the form of a single starch endosperm, refractive index decreased, transparency reduced, and led to the formation of chalk. Under high temperature stress af- ter anthesis, the increase of protein content, the decrease of Mg/K, the changes of rice RVA profile characteristics and starch granule structure of endosperm could be the main reason for the decrease of rice cooking and eating quality and appearance quality.

Suppression of starch synthase I(SSI) by RNA interference alters starch biosynthesis and amylopectin chain distribution in rice plants subjected to high temperature

Based on known cDNAs of rice starch synthase isoforms,we constructed dsRNA interference vectors for starch synthase I(SSI)to produce transgenic plants containing starch with a moderately high amylose content.We investigated the effect of SSI suppression on grain quality traits,starch biosynthesis,and amylopectin chain distribution in rice plants exposed to two different temperature regimes.The activities and transcripts of BEs,DBEs,and other SS isoforms were further investigated to clarify the effect of SSI suppression on these key enzymes and their specific isoforms under different temperature treatments.Suppression of SSI by RNAi altered grain starch component and amylopectin chain distribution,but it exerted only a slight effect on total starch content(%)and accumulation amount(mg kernel?1)and on starch granule morphology and particle size distribution.Under normal temperature(NT),insignificant differences in kernel weight,chalky kernel proportion,chalky degree,and starch granule morphology between SSI-RNAi line and its wild type(WT)were observed.However,amylose content(AC)level and granule-bound starch synthase(GBSS)activity in rice endosperms were markedly increased by SSI-RNAi suppression.The chalky kernel proportion and chalky degree of SSIRNAi lines were significantly higher than those of WT under high temperature(HT)exposure at filling stage.Inhibition of SSI by RNAi affected amylopectin chain distribution and raised starch gelatinization temperature(GT)in two ways:directly from the SSI deficiency itself and indirectly by reducing BEIIb amounts in an SSI-deficient background.The deficiency of SSI expression led to an alteration in the susceptibility of grain chalkiness occurrence and starch gelatinization temperature to HT exposure,owing to a pleiotropic effect of SSI deficiency on the expression of other genes associated with starch biosynthesis.

优质高淀粉甘薯新品种齐宁26选育及特性鉴定

优质高淀粉甘薯新品种齐宁26是以济薯21为母本通过集团杂交选育而成.筛选试验及品质分析结果显示:该品种薯块平均干物率在平原地区和丘陵地区分别为32.28%和40.39%;薯块呈纺锤形,薯皮红色,薯肉淡黄色,结薯整齐集中,商品性好,食味优,抗根腐病、蔓割病及Ⅰ型薯瘟病,中抗Ⅱ型薯瘟病.齐宁26于2023年获得国家非主要农作物品种登记,证书编号为GPD甘薯(2023)370015,2024年获得植物新品种权,品种权号为CNA20221002661.

超高压致淀粉结构变化对醋酸酯淀粉合成及产品品质的影响

以玉米淀粉为原料,经不同压力(100、200、300、400、500、600 MPa)超高压预处理后,再合成醋酸酯淀粉。利用扫描电子显微镜、X射线衍射、快速黏度分析、差示扫描量热等技术对比超高压处理淀粉及醋酸酯淀粉的结构性质。结果表明:超高压处理和乙酰化反应对淀粉结构均有一定的影响,表现出淀粉颗粒的膨胀和破裂。超高压预处理后,淀粉相对结晶度及糊化焓呈现先增大后减小的趋势,其中400 MPa处理时达到最大,分别为35.4%和11.90 J/g,此时糊化黏度相关参数也最大。当预处理压力为600 MPa时,淀粉完全糊化,颗粒失去原有形态,结晶类型由A型向V型转换。由于超高压预处理导致淀粉结构的改变,醋酸酯淀粉取代度和反应效率明显提高,当压力为500 MPa时达到最大值0.103和81.14%,该最大值的出现可能与淀粉颗粒结构明显破坏但维持颗粒态,增加乙酸酐与颗粒接触机会有关。本研究结果表明,对淀粉原料进行超高压预处理进而调控淀粉结构,有利于提升醋酸酯淀粉的合成效率。

高光效甘薯品种浙薯86的选育、产量与品质特征

塑造理想株型是实现作物产量突破和高光效育种的基础和重要途径。采用半直立、优质双亲——淀粉型品种浙薯20和食用型地方品种岳冬进行杂交选育,以理想株型、高产、优质为主要选择目标,育成高光效品种浙薯86。该品种具有理想株型的形态特征,短蔓,基部分枝数多,由较多的直立次生分枝构成半直立株型,垄上株高优势明显,形成较高的冠层空间,叶面积指数高,七裂中等深缺刻叶形,叶片较小而厚,上部叶茎叶夹角小,叶势上冲明显,单株结薯数较多,光合效率和经济系数高,表现出优良的早熟性和丰产性。在浙江省和长江中下游甘薯品种区试中,浙薯86每年的鲜薯产量均居所有参试品种之首,鲜薯、薯干和淀粉产量均比对照徐薯22增产30%左右。浙薯86的块根β-淀粉酶活性高,蒸熟后麦芽糖和可溶性糖含量高,食味优,淀粉率较高,且淀粉的峰值黏度、崩解值和回生值高,糊化温度低,适合用于鲜食、薯脯和淀粉加工。浙薯86适应性广,抗蔓割病,中抗黑斑病、根腐病、Ⅱ型薯瘟病,感茎线虫病、Ⅰ型薯瘟病和基腐病。综上,浙薯86是一个优质、高产、多用途的高光效甘薯品种,适宜在长江中下游地区种植,不宜在浙东南基腐病重疫区推广。

采食高淀粉高油日粮奶牛的泌乳性能、乳成分变化及乳腺差异表达基因筛选

【目的】研究高淀粉高油日粮对奶牛泌乳性能和乳腺组织转录组的影响,探索乳脂下降综合征(Milk fat depression,MFD)的分子机制。【方法】选用8头荷斯坦泌乳奶牛,随机分为对照组和处理组(4头/组),采用2×2反转试验设计,分为2期,每期23 d,期间2组对调。每期的前16 d,对照组奶牛饲喂低淀粉低油的基础饲粮,对照组日粮的泌乳净能为6.78 MJ/kg;处理组奶牛在基础饲粮基础上添加266 g/kg(DM基础)细粉碎玉米和46 g/kg(DM基础)大豆油;后7 d 2组奶牛均喂基础饲粮,处理组日粮的泌乳净能为7.66 MJ/kg。分别于每期的第1、4、7、10、13、16、19和22天测定产奶量和乳成分,第16天采集乳腺组织用于检测转录本的变化。【结果】与对照组相比,处理组第13、16天奶牛的干物质采食量和产奶量显著降低(P<0.05);饲喂高淀粉高油饲粮7 d后乳脂率开始降低,其中,第10、13、16和19天的乳脂率和乳脂产量显著降低(P<0.05);第13、16和19天的乳蛋白、乳糖和非脂固形物含量显著提高(P<0.05)。在奶牛乳腺对照组和处理组中共检测到235个显著差异表达的基因,其中,64个上调、171个下调。GO分析表明,差异表达基因主要与炎症反应、α−氨基酸代谢、有机氮化合物代谢、细胞发育、脂质生物合成和脂肪细胞分化等相关;KEGG分析表明,差异表达基因主要与轴突导向、NF-κB信号通路、钙信号通路等相关。结合差异表达基因与泌乳性能的相关性分析,本研究筛选出了部分与脂质调控相关的基因作为研究奶牛MFD状态下脂质代谢的候选基因,包括在乳腺中下调表达的FGFR4、VDR、HTR2B、CCL21和TYRP1。【结论】高淀粉高油饲粮饲喂奶牛降低了干物质采食量、产奶量和乳脂率,提高了乳蛋白、乳糖和非脂固形物含量,下调了奶牛乳腺中脂肪酸合成相关基因的表达。本研究为科学配制日粮和研究MFD的分子机制研究提供了数据参考。

超高压处理对“和尚头”小麦淀粉结构和特性的影响

该文以西北特产的旱地“和尚头”小麦粉为材料,采用超高压处理对小麦淀粉进行改性,并研究改性淀粉的结构和特性。实验结果表明,与原淀粉相比,100~400 MPa处理下,小颗粒淀粉所占的比重增加(P<0.05),随着处理压力的增加,淀粉颗粒膨胀和聚集,粒径变大;400 MPa处理下的溶解度和膨胀度分别比原淀粉降低了27.32%和8.84%;100 MPa压力处理后,淀粉的T_(O)、T_(P)、T_(C)及ΔH均显著下降(P<0.05),处理压力达到400 MPa以上,检测不到热力学相关数据,表明此条件下小麦淀粉可能完全凝胶化。综上,压力超过400 MPa时,改性淀粉的结构和特性变化显著。

酶解-动态高压微射流制备纳米淀粉及对其结构性质的影响

为探究蜡质玉米淀粉(WMS)经普鲁兰酶协同动态超高压微射流技术(P-DHPM)制备纳米淀粉后对其结构及性质的变化规律,本文探讨了处理前后淀粉微观结构、结晶结构、分子结构、粒径、分子量及热性能的变化趋势。结果表明,随着酶解时间的增加,淀粉圆球形颗粒变碎片状、结晶结构逐渐消失、淀粉短程有序性增加、分子量显著(P<0.05)减小;同时,淀粉糊化峰值温度由71.23℃降低至55.81℃,糊化焓值(ΔH)显著(P<0.05)减小至4.68 J/g;酶解淀粉进一步经微射流处理后,粒径降低至纳米级,淀粉颗粒变成更加无规则的小碎片,糊化峰值温度(T_p)降低至55.37℃,糊化焓值(ΔH)增大至14.13 J/g。通过酶解-微射流技术处理WMS淀粉,可制备得到粒径可控且具有短程有序的纳米尺寸淀粉颗粒,提供了一种环境友好、操作简单的制备方法,同时为继续探讨其在淀粉纳米乳液及淀粉基活性包装材料中的应用奠定基础。

超高压处理对高直链和蜡质玉米淀粉复配体系的影响研究

不同直链/支链淀粉复配以及非热加工处理是改变淀粉理化性质的有效手段。为探讨超高压处理对高直链玉米淀粉和蜡质玉米淀粉复配体系的影响,该文以不同比例复配淀粉为研究对象,研究了超高压(600 MPa/30 min)处理前后其理化性质和结构变化。结果显示,随着蜡质玉米淀粉比例的增加,复配淀粉溶解度、黏度、假塑性增加;超高压处理使复配淀粉储能模量和损耗模量增加;超高压处理后高直链淀粉与蜡质淀粉复配比例为0∶5和2∶3时,其糊化温度分别降低了15.82℃和17.62℃;超高压处理后复配淀粉的相对结晶度、短程有序性降低,其中蜡质玉米淀粉颗粒破损严重,但高直链玉米淀粉颗粒较完整;体外消化结果表明超高压处理降低抗消化淀粉含量,显著提升了慢消化淀粉含量。因此,将不同直链淀粉含量的玉米淀粉复配并加以超高压处理,可作为一种淀粉物理改性的方式,其在淀粉基凝胶领域具有较高应用价值。

中高温大曲发酵中小麦籽粒营养组分的动态变化分析

该研究利用离子色谱和高效液相色谱等方法,研究了中高温大曲不同发酵时期小麦营养成分的变化及其与微生物群落演替间关系。结果表明,曲皮和曲心分别消耗了直链淀粉含量的39.08%和49.12%,支链淀粉含量的84.43%和81.35%,A型淀粉粒的6.41%和26.92%,B型淀粉粒的66.67%和83.33%。麦谷蛋白含量从8 mg/g降为4.73 mg/g(曲皮)和3.53 mg/g(曲心)。黄酮含量从0.08 mg/g增加到0.12 mg/g(曲皮)和0.29 mg/g(曲心)。纤维素含量总体呈下降趋势,但曲心后期有平缓上升;阿拉伯糖和蔗糖含量增加,葡萄糖含量降低。曲心游离氨基酸含量增加幅度高于曲皮,其中谷氨酸含量最高。冗余分析表明18个品质指标与9个细菌属和11个真菌属的相对丰度显著相关(P<0.05),其中直链淀粉含量与叶杆菌属(Phyllobacterium),葡萄糖、果糖、支链淀粉含量与醋酸单胞菌属(Acetobacter)、双杆菌属(Undibacterium)、乳杆菌属(Lactobacillus)均显著正相关。因此,具有高支链淀粉和高葡萄糖含量的小麦品种可能更适用于制曲。该研究结果为探究大曲质量控制、小麦品质与大曲品质间关系,以及选育专用型原料(小麦)品种提供参考。

淀粉类粘合剂对高纤维饲料冷制粒颗粒质量的影响

冷制粒的高纤维颗粒饲料对部分家禽具有降低饲料成本,促进肠道健康的作用,但高粗纤维颗粒饲料的冷制粒生产常存在颗粒质量不佳的问题。本试验旨在通过评价不同种类和配制比例的淀粉类粘结剂对部分家禽高纤维饲料冷制粒的颗粒质量的影响,筛选提高颗粒质量的粘结剂和应用水平。试验分为10个处理,对照组为通过稻壳配制粗纤维含量为8.0%的高纤维基础饲粮;试验组9个,采用3×3双因素设计,因素一为粘结剂,分别为高筋面粉、预糊化淀粉、辛烯基琥珀酸淀粉钠;因素二为粘结剂水平,用粘结剂分别替代基础饲粮重量的1.5%、3%、4.5%。结果表明:(1)阴干3 h后,随着粘合剂种类的变化(高筋面粉~辛烯基琥珀酸淀粉钠),颗粒饲料的稳定性极显著提高(P <0.01),硬度极显著降低(P <0.01)。(2)阴干24 h后,随着粘合剂种类的变化(高筋面粉~辛烯基琥珀酸淀粉钠),颗粒饲料的硬度极显著提高(P <0.01)。(3)阴干3 h和24 h后,随着粘合剂使用水平的提高(1.5%~4.5%),颗粒饲料的各项指标均无显著改善(P> 0.05)。在高纤维饲料中使用1.5%的辛烯基琥珀酸淀粉钠作为粘合剂,阴干24 h,可使高纤维饲料获得最佳冷制粒颗粒质量。

高温胁迫下水稻胚乳磷酸化与泛素化蛋白质组学联合分析

水稻胚乳的代谢依赖于多个翻译后修饰信号网络的精确调控,包括磷酸化和泛素化修饰。本研究通过磷酸化与泛素化蛋白质组学的联合分析,发现水稻胚乳中有143个蛋白质同时具有磷酸化和泛素化位点,这为研究磷酸化和泛素化修饰之间的串扰机制提供了组学基础。一方面,磷酸化修饰通过影响泛素-蛋白酶体系统中的关键蛋白来调控泛素化修饰;另一方面,泛素化修饰通过影响蛋白激酶和蛋白磷酸酶来间接调控植物体内的磷酸化信号网络。高温胁迫下,磷酸化和泛素化修饰协同调控酚类化合物的合成通路,并最终影响酚类化合物清除活性氧的能力以及植物在逆境中的抗性。多种淀粉代谢相关酶同时具有磷酸化和泛素化修饰,并且有18对具有不同修饰类型的位点出现在同一蛋白质的相邻位置,揭示了不同修饰之间的串扰机制以及高温胁迫中磷酸化与泛素化修饰对淀粉代谢的协同调节作用。

高直链玉米淀粉与面筋蛋白比例对复合面条加工适应性的影响

为探究高直链玉米淀粉(HAMS)、面筋蛋白和燕麦麸皮粉用于面条产品的加工适应性,将燕麦麸皮粉与不同比例(2∶2、3∶2、4∶2、5∶2)的HAMS与面筋蛋白混合并制备复合面条,分析其面团热机械学特性、面团动态流变学特性、面条食用品质和面条微观结构等。结果表明,随着HAMS比例增加,复合面团的吸水率显著降低(P<0.05),面团形成时间和稳定时间缩短;储能模量和损耗模量增加,损耗角正切(Tanδ)降低且均小于1,蠕变恢复率先增加后降低。随着HAMS比例增加,复合面条L值增加,a值和b值降低,蒸煮吸水率和蒸煮损失率降低,蒸煮后硬度、弹性和咀嚼性降低。扫描电子显微镜(SEM)和激光共聚焦显微镜(CLSM)结果显示,当HAMS与面筋蛋白比例超过4∶2时,HAMS颗粒能够更均匀地嵌在面筋网络中,使面筋网络形成更致密的结构,进而提升面条加工特性。本研究为功能性复合面条加工提供了新思路。