含大豆蛋白的食品及其制备方法

本发明涉及一种含大豆蛋白的食品，包括：①选自大豆蛋白粉、大豆蛋白浓缩物、大豆蛋白分离物及其混合物的大豆蛋白材料；②湿润剂，包括（i）着色剂和至少一种选自（ii）调味剂，（iii）甘油三酯，（iv）食品级酸或酸性盐，（v）食品级碱或碱性盐，（vi）食品级乳液；③水。另一个实施方案中，本发明涉及制备含大豆蛋白的食品的方法。     

美拉德反应调控大豆蛋白功能性质的研究进展

大豆蛋白(Soy Protein Isolate,SPI)在赋予食品质构和稳定性中发挥重要作用。美拉德反应能够改变大豆蛋白的相对分子质量、氨基酸组成、电荷和结构,进而改变大豆蛋白的功能性质。本文对美拉德反应对大豆蛋白结构、功能性质的影响以及目前美拉德产物构效关系研究存在的局限性进行综述,同时展望了该研究在食品加工中的应用前景。     

Alcalase碱性蛋白酶水解大豆蛋白的工艺过程及动力学研究

对Alcalase碱性蛋白酶催化水解大豆蛋白的系统研究，得到催化水解大豆蛋白的优化水解工艺，并对其动力学特性进行了初步探讨。     

Alcalase碱性蛋白水酶解大豆蛋白的工艺过程及动力学研究

对Alcalase碱性蛋白酶催化水解大豆蛋白的系统研究，得到催化水解大豆蛋白的优化水解工艺，并对其动力学特性进行了初步探讨。     

一种酶改性制备低凝胶性高分散性大豆蛋白的方法

通过过渡态大豆蛋白的酶改性制备低凝胶性高分散性大豆蛋白的方法属于大豆深加工技术领域。本发明采用低温脱脂豆粕为原料，先得到一种部分热变性的过渡态大豆蛋白．然后使用内肽酶和外肽酶进行酶解，反应结束，经过适当的加热灭酶处理得到苦味低、分散快、凝胶性弱、悬浮稳定性好的大豆蛋白。该大豆蛋白产品可应用于乳制品、饮料和冲调饮料、蛋白质营养补充剂及注射型蛋白产品中。     

大豆加工业发展的重点领域

发展大豆加工可以提高食品的营养价值,促进人体健康,也可缓解人们对高蛋白质食品的需要。根据市场需求和产业发展的需要,大豆加工业发展的重点领域包括以下3个方面。1．优先发展大豆蛋白加工领域大豆蛋白质是一种十分廉价的优质蛋白质,与传统的动物蛋白、植物蛋白相比,单位土地面积可生产出的大豆蛋由最多,这对于可耕种土地面积少、人口众多的国家而言,大大降低了生产成本,因此发展大豆蛋白产业对于解决我国蛋白质营养问题,不失为一个很好的选择。     

酯化大豆蛋白的制备及抑菌性研究

采用大豆分离蛋白(Soy Protein Isolate,SPI)、大豆球蛋白(11S)和β-伴大豆球蛋白(7S)为原料,进行酯化改性,研究反应时间、盐酸浓度以及蛋白质与甲醇的物料比对蛋白质酯化率的影响.根据酯化率确定3种酯化大豆蛋白(MSPI、M11S、M7S)的制备条件,并测定酯化大豆蛋白的红外光谱、Zeta-电位...     

腐乳生产加工的工艺要点

1.大豆精选与浸泡选用优质大豆为原料,剔除沙石、木屑等杂物。浸泡豆水比例为1︰3.5,确保大豆充分吸水膨胀;泡豆水pH值为10~12时,有助于提高大豆蛋白溶解度。泡豆时间根据水温不同而异,一般浸泡时间为8～12小时,水温高可相应减少浸泡时间,但水温不宜超过25℃,否则泡豆水容易变酸,对提取大豆蛋白不利。     

大豆蛋白-淀粉基人造鸭肉工艺研发

以大豆组织蛋白基素肉为人造鸭肉基料,以感官评价为指标,通过考察单因素对人造鸭肉感官品质的影响条件,建立L₉ (4³)正交试验,确定大豆蛋白人造鸭肉最佳制作工艺。结果表明,当鸭肉香精添加量0.7 g、红曲红色素添加量0.08 g、卤制时间60 min及腌制时间120 min时,制作的大豆蛋白-淀粉基人造鸭肉质地紧致、色泽红润、味道适口及有弹性,整体的可接受度高。     

我国大豆产业发展应重点转向开发利用大豆蛋白资源

随着食品生产技术的革新,传统大豆制品走上了工业化生产之路,而新兴大豆食品正成为全球一大消费热点。参加首届大豆产业园发展战略高层论坛的专家指出,我国迫切需要及时调整大豆产业发展方向,把开发利用大豆蛋白作为今后的发展重点。据介绍,大豆的蛋白质含量是现有农作物中最高的,其氨基酸组     

Estimating the Potential Benefits of New Health Claims in Canada: The Case of Soluble Fiber and Soy Protein

Growing awareness of the link between diet and health has spurred growth in the functional food sector. Health Canada regulates allowable health claims on food products, and in recent years has approved health claims linking the consumption of soluble fiber from barley (2012) and psyllium (2011) to reduced/lower low‐density lipoprotein (LDL)‐cholesterol levels, a major risk factor for heart disease. A health claim linking consumption of soy protein to reduced risk of coronary heart disease (CHD) is still under consideration. Using a cost‐of‐illness approach, this paper estimates the potential economic benefits of allowing health claims for soluble fiber and soy protein in terms of reductions in the direct and indirect costs of CHD. Parameters for the economic analysis are drawn from a meta‐analysis of scientific studies examining the effect of soluble fiber and soy protein on LDL‐cholesterol levels, as well as other scientific literature. While a barley soluble fiber health claim yields nontrivial benefits in a base case scenario equal to CAD$105 million annually and ranging from $42 million to $238 million in low and high scenarios, the potential benefits of a soy protein health claim appear to be several magnitudes larger at $549 million annually in the base case and ranging from $220 million to $1.25 billion in low/high scenarios. Given the relatively slow regulatory approval process for new health claims, there may be value in using economic estimates of potential gains to help prioritize health claims approval processes.     

超临界萃取技术在大豆中的应用

超临界萃取技术是一种新型提取技术,具有快速高效、选择性好、条件温和、安全无污染等优点.介绍了超临界萃取技术在大豆开发与研究中的应用,如利用超临界流体萃取大豆磷脂、大豆胚芽油,从大豆油脱臭馏出物中制备维生素E以及用于大豆的脱臭等。     

The new economic geography of land use change: Supply chain configurations and land use in the Brazilian Amazon

In this paper we present a framework for understanding regional land use processes by incorporating the concept of agglomeration economies into agricultural frontier theory. We show that agricultural firms can obtain positive externalities from locating in close proximity to other agricultural firms, leading to agglomeration economies. Agglomeration economies lead to high levels of competition and diversity within a local agricultural supply chain and influence local prices, information flows, and private enforcement of environmental institutions. We use the theory of agglomeration economies to understand the development of soybean production in two counties along the Santarém-Cuiaba (BR-163) highway in the Brazilian Amazon: Santarém, Pará and Sorriso, Mato Grosso. We conclude that differences in environmental and land tenure institutions influenced the occurrence of agglomeration economies in these two counties, which in turn affected the total factor productivity of soy in each region. In particular, the supply chain became extremely competitive and diverse in Sorriso where few environmental regulations existed, while environmental restrictions reduced the diversification of the supply chain in Santarém. The presence of a soy agglomeration economy in Sorriso spurred innovation, increased productivity, and led to extremely rapid soy expansion in that county, while the monopolistic supply chain in Santarém reduced producers’ access to land and capital and impeded soy expansion.     

Short-run dynamics of feed ingredient prices facing the EC: a causal analysis

This paper attempts to (1) shed some light on the EC – US controversy concerning the effect of the EC oilseeds market regime on EC imports of US soybean products, essentially soy meal, and (2) provide information on another EC – US controversy: Does corn-gluten feed behave as a substitute for (EC view) or a complement to (US view) feed grains, and do EC corn-gluten feed imports displace EC grain production or not? By using a constrained vectorial autoregressive model of Rotterdam prices for soy meal, sunflower meal, rape meal, corn-gluten feed and cassava, we show that (1) the decrease in EC imports of US soymeal are mot mainly caused by the EC milling subsidies, and (2) corn-gluten feed is both a substitute for soymeal due to its protein content and a substitute for cassava (and grains) due to its energy content: US and EC views are only partial views.     

Poisoned,Dispossessed and Excluded: A Critique of the Neoliberal Soy Regime in Paraguay

This paper challenges the recent hailing of agricultural biotechnology as a panacea for food insecurity and rural poverty in countries of the global South. Based on an empirical investigation of the neoliberal soy regime in Paraguay, I document how the profound transformation of this country's agricultural mode of production over the past two decades, spurred by the neoliberal restructuring of agriculture and the biorevolution, has jeopardized rural livelihoods. In particular, I demonstrate how the transgenic soyization of Paraguay's agriculture has led to an increased concentration of landholdings, as well as the displacement and disempowerment of peasants and rural labourers who have been rendered surplus to the requirements of agribusiness capital. At the same time, the consolidation of this new agro‐industrial model has fostered a growing dependence on agrochemicals that compromise environmental quality and human health. Thus, I argue, a development policy based on industrial monocropping of genetically modified (GM) soy is inappropriate, unsustainable and unethical.     

Environmental Injustice in Argentina: Struggles against Genetically Modified Soy

This paper explores the unequal distribution of the environmental and social costs and benefits of the genetically modified (GM) soy model in Argentina and its impact on grievance formation and the emergence of contestation. In the 1990s, Argentina transitioned into a neoliberal agro‐industrial model based on producing GM soy for export. Though celebrated as a success, the expansion of GM soy monocultures has brought widespread socio‐ecological disruption. Various social actors have started to mobilize against the resulting environmental injustice. I focus on the peasant–indigenous movement in the north of the country, which is struggling for land rights, and the movements against agrochemical spraying in the central Pampas region. These groups, which are relatively powerless to control resources where they live, and that experience little or no benefit from GM soy production, nevertheless bear most of its social and ecological costs. These struggles link environmental and social well‐being, becoming struggles for ecological sustainability as well as social justice and equity.     

食品中蛋白质快速检测技术分析

蛋白质作为生命的物质基础,检测食品中的蛋白质含量有利于进一步掌握食品的质量、食品的营养价值和品质变化,以满足当今社会对食品安全以及食品中营养元素摄入的需求。现如今,检测食品中的蛋白质可以采取多种多样的技术和手段,并且发展至今已得到相当程度的完善。基于此,本文首先阐述了食品中的蛋白质及其检测意义,然后论述了食品中蛋白质快速检测技术,以供参考。     

Exploiting the cointegration properties of the US soy-based market system

Perhaps for the first time, this paper applies Johansen and Juselius' methods of the cointegrated vector autoregression (VAR) model to a monthly US system of markets for soybeans, soy meal, and soy oil. Analysis of the error correction or cointegration space illuminates the empirical nature of policy-relevant market elasticities, and of effects of important policy, market, and institutional events on US soy-related markets. A statistically strong US demand for soybeans emerged as the primary cointegrating relation in the error-correction space.     

川味柚皮菜制作工艺研究

为解决柚子皮的浪费问题,提高柚果附加值,以柚子果皮为原料,通过清洗、热烫、硬化和调味等工艺研发一种川味柚皮凉菜。将硬化后的柚子皮进行调味,以辣椒油、花椒油和味极鲜酱油添加量作为试验因素,感官得分作为评价指标进行正交试验,确定川味柚皮菜最佳调味配方。所得最佳调味配方为食盐3 g、白砂糖1g、鸡精2.5 g、姜蒜汁3 g、辣椒油10.0 mL、花椒油2.5 mL和味极鲜酱油7.5 mL,在此工艺下所得柚皮菜麻辣鲜香,清爽可口。