Hydrocolloids

水胶体
  • 文章类型: Journal Article
    这篇综述针对巧克力甘纳许生产和配方的当前趋势。Ganache是巧克力的混合物,糖,糖乳制品,和其他通常用来填充果仁的成分,糕点,等。尽管ganache在食品工业中很受欢迎,科学文献中尚未讨论过专注于功能性物质的应用和ganache加工的全面综述。这篇综述讨论了应用特殊成分的新方法,如植物脂肪和种子,调味输液,油凝胶,大麻产品,等。,可以将其添加到ganache矩阵中以实现所需的属性。特别是,甾醇和甾醇酯作为油凝胶功能物质的应用似乎是一种非常有前途的方法,增强ganache脂肪轮廓。通过应用亲水胶体和/或基于水果的成分,可以大大减弱ganache特有的高卡路里含量。从而提供降低热量而不损害味道的潜力。通过应用天然物质对ganache配方的各种改变为开发新的ganache变体和相关食品提供了很大的基础。
    This review aims at the current trends in chocolate ganache production and recipe formulation. Ganache is a blend of chocolate, sugars, dairy, and other ingredients commonly used to fill pralines, pastries, etc. In spite of ganache\'s popularity in the food industry, a comprehensive review focused on the application of functional substances and ganache processing has not been discussed in the scientific literature. This review addresses the new ways of applying special ingredients, such as vegetable fats and seeds, flavor infusions, oleogels, hemp products, etc., which can be added to the ganache matrix to achieve desirable properties. In particular, the application of sterols and sterol esters as functional substances of oleogels seems to be a very promising method, enhancing the ganache fat profile. The elevated caloric content that is characteristic of ganache can be substantially attenuated through the application of hydrocolloids and/or fruit-based components, thereby offering the potential for caloric reduction without compromising on taste. The various alterations to ganache formulations by the application of natural substances offer a large base for the development of novel ganache variants and relevant food products.
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  • 文章类型: Journal Article
    这项研究提供了关于在不同水果类型中配制水果馅料中利用各种水胶体的当前发展的全面回顾。它们对纹理属性的影响,流变性能,热稳定性,脱水收缩,和填充物的营养优势,并优化其特性,以符合消费者的喜好。综述还重点介绍了影响水果馅料的各种因素,包括水果的选择,处理方法,水胶体的固有性质和浓度,以及它们的协同作用。在深度,关于pH等参数影响的科学工作,总可溶性固体,还讨论了水果馅料中的糖含量。此外,本文重点介绍了在包括糕点在内的烘焙产品中使用水胶体开发的各种水果馅料的利用,塔特莱特,松饼,饼干,等等。审查表明,亲水胶体提供了一系列技术功能属性,有助于加强水果填充物的结构和热稳定性,从而延长其保质期。其进一步确定,水胶体的掺入通过减轻过量糖或各种其他不太有利的成分的必要性而促进更健康的食品的开发。在烘焙产品中加入水果馅料显著增加了这些烘焙食品的价值主张,有助于整体提高质量和感官价值。
    This study offers a comprehensive review of current developments regarding the utilization of diverse hydrocolloids in formulating fruit fillings across different fruit types, their impact on textural attributes, rheological properties, thermal stability, syneresis, and nutritional advantages of fillings and optimization of its characteristics to align with consumer preferences. The review also focuses on the various factors influencing fruit fillings, including the selection of fruits, processing methodologies, the inherent nature and concentration of hydrocolloids, and their synergistic interactions. In depth, scientific work on the impact of the parameters such as pH, total soluble solids, and sugar content within the fruit fillings was also discussed. Additionally, this article focuses on the utilization of the diverse fruit fillings developed by using hydrocolloids in bakery products including pastry, tartlet, muffins, cookies, and so forth. The review establishes that hydrocolloids offer a spectrum of techno-functional attributes conducive to strengthening both the structural and thermal stability of fruit fillings, consequently extending their shelf life. It further establishes that incorporating of hydrocolloids facilitates the development of healthier food products by mitigating the necessity of excessive sugar or various other less favorable ingredients. The incorporation of fruit fillings in bakery products significantly increases the value proposition of these baked goods, contributing to their overall enhancement of quality and sensory value.
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  • 文章类型: Journal Article
    番石榴,一种商业上重要的水果作物,生长在世界各地的热带和亚热带地区。由于番石榴果实的易腐性质,在营销过程中有很大的损失,运输和储存。可食性包衣的应用正在兴起,实施简单,有效的方法来延长新鲜园艺产品的采后寿命,如水果和蔬菜。这项研究旨在评估Albizia胶(AZG)改善贮藏性和保持储存的番石榴果实的整体果实品质的潜力。新鲜收获的番石榴果实涂0%(对照),1.5%,3%或4.5%AZG。涂层处理后,将果实在20±1°C和85-90%相对湿度下储存15天。结果表明,AZG涂层抑制了高达27.43%和36%的重量损失和腐烂发生率,分别,与对照组相比。涂有4.5%AZG的水果具有最大的可滴定酸度(0.41%),抗坏血酸(104.47mg·100g-1),总抗氧化剂(118.84mmolTrolox·100g-1),储存第15天的总酚类物质(285.57mg·kg-1)和类黄酮(60.12g·kg-1)。然而,最小总可溶性固形物(11.97%),糖酸比(29.31),相对离子泄漏(68.40%),在储存的第15天,在相同处理的果实中记录了丙二醛(0.11nmol·kg-1FW)和过氧化氢(16.05μmol·kg-1FW)。此外,抗氧化酶的活性“即,超氧化物歧化酶(SOD),过氧化物酶(POD),过氧化氢酶(CAT),在AZG涂层的影响下,抗坏血酸过氧化物酶(APX)增加。因此,与未包衣的水果相比,AZG涂层水果表现出降低的水果软化酶活性,即纤维素酶,果胶甲基酯酶(PME),和多聚半乳糖醛酸酶(PG)\“。总之,应用基于AZG的可食用涂层可以显着提高番石榴的贮藏寿命并保持果实的整体品质。
    Guava, a commercially important fruit crop, is being grown in tropical and subtropical regions around the world. Due to the perishable nature of guava fruits, there are great losses during marketing, transport and storage. The application of edible coating is emerging as a low-cost, simple to implement and efficient method for extending the postharvest life of fresh horticultural produces, such as fruits and vegetables. This study aimed to assess the potential of Albizia gum (AZG) to improve storability and maintain the overall fruit quality of stored guava fruits. Freshly harvested guava fruits were coated with 0 % (control), 1.5 %, 3 % or 4.5 % AZG. After coating treatment, the fruits were stored at 20 ± 1 °C and 85-90 % relative humidity for 15 days. The results revealed that 4.5% AZG coating suppressed the weight loss and decay incidence up to 27 % and 36 %, respectively, as compared with control. The fruits coated with 4.5 % AZG had the maximum titratable acidity (0.40 %), ascorbic acid (104.47 mg·100 g-1), total antioxidants (118.84 mmol Trolox·100 g-1), total phenolics (285.57 mg·kg-1) and flavonoids (60.12 g·kg-1) on 15th day of storage. However, the minimum total soluble solids (11.97 %), sugar-acid ratio (29.31), relative ion leakage (68.40 %), malondialdehyde (0.11 nmol·kg-1 FW) and hydrogen peroxide (16.05 μmol·kg-1 FW) were recorded in the fruits of same treatment on 15th day of storage. Furthermore, the activities of antioxidant enzymes \"i.e., superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX)\" were increased under the influence of AZG coating. Consequently, as compared to uncoated fruits, AZG-coated fruits exhibited reduced activities of fruit softening enzymes \"i.e., cellulase, pectin methylesterase (PME), and polygalacturonase (PG)\". To sum up, the application of AZG-based edible coating could markedly improve the storage life of guavas and maintain overall fruit quality.
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  • 文章类型: Journal Article
    本研究考察了不同亲水胶体对提高鸡肉末适印性和加工后稳定性的影响,用1%的配方制备每种水胶体,并与对照进行比较。分别探讨了这些亲水胶体对鸡肉碎肉的流变特性和复杂模型印刷能力的影响,同时分析了加热前后样品的蒸煮损失和微观结构变化。结果表明,含有卡拉胶的鸡肉碎肉凝胶更适合印刷,增加了样品的屈服应力和表观粘度,印刷过程更容易成型。此外,角叉菜胶增加了样品的硬度,在加热过程中,微观结构致密且变化不大,水被锁定在凝胶基质中,减少加热过程中的形状变化。水胶体的使用提高了鸡肉3D打印后处理的稳定性。
    This study investigated the effect of different hydrocolloids on the improvement of the printability and post-processing stability of minced chicken meat, each hydrocolloid was prepared with 1 % formulation and compared with the control. The effects of these hydrocolloids on the rheological properties of chicken mince and complex model printing capability were explored separately, while the cooking loss and microstructure changes of the samples before and after heating were analyzed. The results showed that the chicken mince gel containing carrageenan was more suitable for printing, increased the yield stress and apparent viscosity of the samples, and the printing process was easier to mold. In addition, carrageenan increased the hardness of the samples, and the microstructures were compact and changed little during the heating process, and the water was locked in the gel matrix, reducing shape changes during the heating process. The use of hydrocolloids improves the stability of post-processing of chicken 3D printing.
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  • 文章类型: Journal Article
    对可持续和道德食品选择的需求不断增长,导致基于植物的肉类替代品(PBMS)取得了重大进展。PBMS在模拟味道方面取得了相当大的进展,纹理,和动物肉的感官特性。结缔组织是动物肉的基本组成部分,显着影响压痛,纹理,和感官特性。然而,现实结缔组织的模仿在PBMS行业中受到的关注相对较少。目前的工作重点是探索用于复制植物结缔组织(PBCT)的材料和技术。通过了解动物结缔组织(ACT)的结构和功能特征,在PBCT中复制这些特征是可能的。水凝胶,具有模拟ACT某些特性的能力,为创建PBCT提供可行的材料。为了实现所需的模拟,它们的机械和结构性能需要通过使用几种材料和几种物理技术来增强。
    The growing demand for sustainable and ethical food options has led to significant advancements in plant-based meat substitutes (PBMS). PBMS have made considerable progress in simulating the taste, texture, and sensory properties of animal meat. Connective tissue is a fundamental component of animal meat that significantly influences tenderness, texture, and sensory properties. However, the imitation of realistic connective tissues has received relatively less attention in the PBMS industry. The current work focuses on exploring materials and techniques for the replication of plant-based connective tissues (PBCT). By understanding the structural and functional characteristics of animal connective tissues (ACT), it is possible to replicate these characteristics in PBCT. Hydrogels, with their ability to simulate certain properties of ACT, present a viable material for the creation of PBCT. To achieve the desired simulation, their mechanical and structural properties need to be enhanced by using several materials and several physical techniques.
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  • 文章类型: Journal Article
    软腐烂杆菌(SRP)是一组破坏性的革兰氏阴性植物病原体,可以感染多种植物宿主,包括土豆。没有针对SRP的有效控制剂,使他们的管理具有挑战性。我们开发了一种新的方法来保护马铃薯块茎免受SRP的侵害。它利用封装的捕食性Bdellovibrio细菌从聚合物载体释放后,捕食SRP。我们应用了一种基于角叉菜胶-海藻糖的配方,其中含有B.bacteriovorusHD100捕食者,以防止马铃薯块茎中的软腐病发展。在各种条件下。干燥的制剂在室温(约25ºC)下经过18个月的时间表现出非常高的稳定性,与未包裹的捕食者悬浮液相反,其中生存力迅速下降,低于检测水平。复水配方与新鲜生长的未包封的捕食者一样有效,并在盆栽马铃薯块茎中提供高度保护,在接种和种植后7天,在受控条件下显示疾病参数(例如组织腐烂和疾病指数)平均减少50%。该制剂提供的保护作用在自然气候条件下在网房内的较大容器中进行的长期试验(28天)中保持不变。突出了其在该领域的实际应用潜力。
    Soft rot Pectobacteriaceae (SRP) are a group of destructive Gram-negative phytopathogens that can infect a wide range of plant hosts, including potatoes. There are no effective control agents available against SRP, making their management challenging. We have developed a novel approach to protect potato tubers against SRP. It makes use of encapsulated predatory Bdellovibrio bacteriovorus bacteria that upon release from a polymeric carrier, prey upon SRP. We applied a carrageenan-trehalose-based formulation containing a B. bacteriovorus HD100 predator to prevent soft-rot disease development in potato tubers, under various conditions. The dried formulation exhibited very high stability over an eighteen-month period at room temperature (˜25ºC), in contrast to unencapsulated suspensions of the predator, in which viability decreased rapidly below detection level. The rehydrated formulation was as efficient as freshly grown unencapsulated predators, and provided high protection in potted potato tubers, displaying an average of 50% reduction in disease parameters (e.g. tissue decay and disease index) under controlled conditions at 7-days post-inoculation and planting. The protective effect provided by this formulation was maintained in longer-term trials (28 days) conducted in larger vessels within a net-house under natural climate conditions, highlighting its potential for practical application in the field.
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  • 文章类型: Journal Article
    蛋白质和可溶性膳食纤维之间的相互作用在动物源性食品的开发中起着至关重要的作用。在这里,不同含量(0-3.0%)的车前子果壳粉(PHP)对胶凝行为的影响,微观结构,并研究了大黄肌原纤维蛋白(MP)的分子间相互作用。流变和化学力表明,PHP(1.5%-2.0%)在低离子强度下增强了MP的功能特性,从而增加混合凝胶的粘弹性。SDS-PAGE显示PHP增强了蛋白质分子的交联和聚集。圆二色谱,低场核磁共振,和扫描电子显微镜显示,PHP诱导α-螺旋(减少14.85%)转化为有序的β-折叠结构(增加81.58%),更有利于形成致密网状结构,提高了MP凝胶的保水性(10.53%)。这项研究为PHP有效改善MP的热诱导胶凝特性提供了新的见解。
    The interaction between proteins and soluble dietary fibers plays a vital role in the development of animal-derived foods. Herein, the effects of different contents (0-3.0%) of round-bracted psyllium husk powder (PHP) on the gelation behavior, microstructure, and intermolecular interactions of Andrias davidianus myofibrillar protein (MP) were investigated. Rheological and chemical forces suggested that PHP (1.5%-2.0%) enhanced the functional properties of MP at low ionic strength, thereby increasing the viscoelasticity of mixed gels. SDS-PAGE revealed that PHP reinforced the cross-linking and aggregation of protein molecules. Circular dichroism spectroscopy, low-field nuclear magnetic resonance, and scanning electron microscopy demonstrated that PHP induced the transformation of α-helix (decreased by 14.85%) to an ordered β-sheet structure (increased by 81.58%), which was more favorable for the formation of dense network structure and improved (10.53%) the water retention of MP gels. This study provided new insights for PHP to effectively meliorate the heat-induced gelling properties of MP.
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  • 文章类型: Journal Article
    近年来,烘焙行业一直在探索替代脂肪来取代传统的固体脂肪。缩短,一种常见的烘焙原料,是通过植物油的氢化产生的,导致高水平的饱和和反式脂肪酸,尽管它的植物油来源。过度食用这些脂肪会对健康产生负面影响,包括血脂异常和心血管问题。油凝胶,掺入羟丙基甲基纤维素(HPMC),黄原胶(XG),橄榄油,用于替代白锅面包生产中的起酥油。白锅面包制剂中用油凝胶代替起酥油表明饱和脂肪的潜在减少,反式脂肪,饱和脂肪与不饱和脂肪酸的比例。具体来说,用油凝胶完全取代起酥油,饱和脂肪酸下降52.46%,反式脂肪酸下降75.72%,不饱和脂肪酸增加57.18%。我们的发现表明,用起酥油制成的面包与起酥油替代量高达50%的面包之间的体积没有显着差异。此外,与用起酥油和50%油凝胶替代制成的面包相比,对体积和膨胀性能的质量特性没有不利影响,回生速率延迟。这项研究表明,掺入油凝胶,由HPMC和XG等水胶体形成,代替面包中的起酥油,结合传统的固体脂肪,与单独使用油凝胶相比,对面包的质量和营养方面提供了积极的影响。通过这项研究,我们证明了使用油凝胶作为一种更健康的替代品,不降低面包的质量,从而提供了一个实用的解决方案,以减少不健康的脂肪在烘焙产品。
    In recent years, the bakery industry has been exploring alternative fats to replace traditional solid fats. Shortening, a common baking ingredient, is produced through the hydrogenation of vegetable oils, resulting in high levels of saturated and trans fatty acids, despite its vegetable oil origin. The excessive consumption of these fats has been associated with negative health effects, including dyslipidemia and cardiovascular issues. Oleogels, incorporating hydroxypropyl methylcellulose (HPMC), xanthan gum (XG), and olive oil, were utilized to replace shortening in the production of white pan bread. The substitution of shortening with oleogel in the white pan bread preparation demonstrated potential reductions in saturated fat, trans fat, and the ratio of saturated fat to unsaturated fatty acids. Specifically, with the complete substitution of shortening with oleogel, saturated fatty acids decreased by 52.46% and trans fatty acids by 75.72%, with unsaturated fatty acids increasing by 57.18%. Our findings revealed no significant difference in volume between bread made with shortening and bread with up to 50% shortening substitution. Moreover, when compared to bread made with shortening and 50% oleogel substitution, no adverse effects on the quality characteristics of volume and expansion properties were observed, and the retrogradation rate was delayed. This study suggests that incorporating oleogels, formed with hydrocolloids such as HPMC and XG, to replace shortening in bread, in conjunction with traditional solid fats, provides positive effects on the quality and nutritional aspects of the bread compared to using oleogel alone. Through this study, we demonstrate the use of oleogels as a healthier alternative to shortening, without reducing the bread\'s quality, thus offering a practical solution to reduce unhealthy fats in bakery products.
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    文章类型: Journal Article
    Scalds constitute the most common type of childhood burns. Given their potential for spontaneous healing, a variety of dressings are used to promote healing and prevent infection. This comparative study was carried out to document the clinical presentation of pediatric scald burns and evaluate their management outcome with hydrocolloid dressings versus silver sulphadiazine (SSD) in terms of complete healing, healing time, mean number of dressings required to achieve healing, and any need for split thickness skin grafting at three weeks. The study included all pediatric scald patients (aged ≤15 years) who presented with superficial partial-thickness and deep partial-thickness wounds during the study period. Exclusion criteria included children over the age of 15 years, facial scalds and full thickness scalds. Half of the patients were randomly assigned to the hydrocolloid group and half to the SSD group. Out of a total of 100 patients, 66% (n=66) were males whereas 34% (n=34) were females. Age ranged from 3 months to 15 years, with a mean of 2.88±2.86 years. Total body surface area (TBSA) affected ranged from 3% to 17% with a mean of 7.00±4.76%. The majority of the children (75%) were managed on an outpatient basis whereas 25% were hospitalized. Hydrocolloid dressings yielded superior results in terms of complete healing of the scalds, healing time, the mean number of dressings required to achieve healing, and less frequent need for split thickness skin grafting at three weeks. Given the observed benefits, hydrocolloid dressings should constitute the preferred choice of dressing for managing superficial and deep partial thickness scalds in the pediatric population.
    L’ébouillantement est la cause la plus fréquente de brûlure chez l’enfant. Volontiers peu profondes, ces brûlures peuvent bénéficier de pansements promouvant la cicatrisation et limitant l’infection. Cette étude avait pour but d’évaluer comparativement l’évolution et la cicatrisation à 3 semaines (délai de cicatrisation complète, % de surface guérie, nombre de pansements, greffes) d’enfants ébouillantés selon que le pansement est hydrocolloïdal (HC) ou à la sulfadiazine argentique (SDA). Elle a inclus tous les ébouillantements observés chez 100 enfants (≤15 ans) vus avec des ébouillantements superficiels ou intermédiaires durant la période d’étude. Les critères d’exclusion étaient un âge de plus de 15 ans, une atteinte faciale, une atteinte profonde. Les patients inclus étaient tirés au sort par moitiés pour bénéficier de pansements HC ou SDA. L’âge moyen était de 2,88 ± 2,86 ans (3 mois-15ans) ; il y avait 66 garçons et 34 filles. La surface touchée était de 7 ± 4,76% (3-17). Les 3/4 des enfants ont été suivis en externe. Les enfants sous HC guérissaient plus complétement (moins de greffes), plus vite, après moins de pansements que ceux sous SDA. Ainsi, les pansements HC devraient représenter le traitement préférentiel des ébouillantements peu profonds de l’enfant.
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  • 文章类型: Journal Article
    过量食用盐与心血管疾病的发病率增加有关,高血压,糖尿病,和其他健康问题。然而,找到适当的策略来平衡感官品质,同时实现钠减少是具有挑战性的,因为盐在提供所需的外观中起着至关重要的作用,纹理,和味道。综述了水胶体性质(添加和类型)对咸味感知的影响。此外,考虑到食物成分之间的相互作用,共价和非共价,我们建议设计能够结合钠离子的特殊胶体结构,以增强盐味感。水胶体对物理化学的影响,结构,然后讨论了凝胶食品的感官品质。最后,通过解决当前低盐食品和消费者需求的问题,我们为低盐食品的未来发展提供了展望。选择合适的水胶体和精确控制添加是实现盐减少的关键考虑因素。水胶体和其他食物成分之间的相互作用可用于设计专门的胶体结构,从而实现基于凝胶的盐的减少和增强性能。这篇综述为健康发展提供了理论参考,营养丰富,和美味的低盐食品,可以帮助预防和缓解与过量食盐有关的疾病。
    Excessive consumption of salt is associated with increased incidence of cardiovascular diseases, hypertension, diabetes, and other health issues. However, it is challenging to find appropriate strategies that balance sensory qualities while achieving sodium reduction as salt plays a crucial role in providing desired appearance, texture, and taste. The impact of hydrocolloid properties (addition and type) on saltiness perception were reviewed. Additionally, considering the interactions between food components, both covalent and noncovalent, we propose designing specialized colloidal structures capable of binding sodium ions to enhance salt-taste perception. The effects of hydrocolloids on the physicochemical, structural, and sensory qualities of gel foods are then discussed. Finally, by addressing current issues with low-salt foods and consumer demands, we provide a future outlook for low-salt food development. The selection of suitable hydrocolloids and precise control of the addition are crucial considerations for achieving salt reduction. The interaction between hydrocolloids and other food components can be utilized to design specialized colloidal structures, thereby accomplishing gel-based salt reduction and enhancing properties. This review serves as a theoretical reference for developing healthy, nutritious, and flavorful low-salt foods that can aid in the prevention and mitigation of diseases associated with excessive salt consumption.
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