红枣发酵香肠的设计研制

红枣是中国的特色果品,有很高的营养和药用价值,发酵香肠也以其独特的口味和丰富的营养颇受人们喜爱。在食品朝着更安全更健康方向发展的大背景下,红枣发酵香肠研制无疑将会是其中一个比较新颖的颇受很硬的产品。本文对红枣发酵香肠研制的可能性、产品特点、工艺流程、市场前景都进行了一定的阐述,重点介绍了其生产过程中涉及到的新技术。     

Dilute-and-shoot procedure for the determination of mineral constituents in vinegar samples by axially viewed inductively coupled plasma optical emission spectrometry (ICP OES)

Samples of commercial wine vinegar were introduced in an axially viewed inductively coupled plasma optical emission spectrometry instrument (AX-ICP OES) equipped with different sample introduction systems: a cross-flow nebulizer combined with a double-path spray chamber (CF-DP) and cone spray associated with a cyclone spray chamber (CS-CC). Samples of white and red wine vinegar were diluted with water before analysis. Higher magnesium Mg II/Mg I ratios (11 and 10 for CS-CC and CF-DP, respectively) were obtained using a nebulization gas flow rate of 0.6 l min^-1 and an applied power of 1.3 kW. The background equivalent concentrations (BEC) and signal-to-background ratio (SBR) of analytes were improved using scandium (Sc) as the internal standard. The limits of detection (LOD) and limits of quantification (LOQ) for mineral constituents were similar for both introduction systems. Best recoveries values were obtained using a plasma under robust conditions, CS-CC system and Sc as the internal standard. The concentration determined in 13 commercial samples of wine vinegars varied between 0.2 and 3.0, between 0.02 and 0.4, between 8.5 and 100.0, between 0.01 and 0.05, between 27.0 and 540.0, between 4.0 and 79.0, between 0.4 and 10.0, and between 0.01 and 2.0 for aluminium (Al), barium (Ba), calcium (Ca), copper (Cu), potassium (K), magnesium (Mg), manganese (Mn), and zinc (Zn), respectively.     

不同澄清剂在消除酿造食醋二次沉淀上的应用

为了提高酿造食醋质量，减少食醋中沉淀物的含量，探讨了利用壳聚糖、蛋清液和明胶在消除酿造食醋二次沉淀上的清除效果，并对其使用效果和使用后的食醋口感进行了比较。结果表明：使用蛋清液和明胶消除酿造食醋二次沉淀后，其效果和食醋的口感优于使用壳聚糖。     

Optimization of jujube peel pigment multivesicular liposome formulation and evaluation of the protective effect on UVB-induced photodamage

Jujube peel pigment (JP), an ideal natural water-soluble pigment extracted from jujube peel, mainly consists of flavonoids and possesses a wide range of physiological activities. In this study, JP-loaded multivesicular liposomes (JP-MVL) were prepared using the double emulsification method. JP-MVL was characterized, and its encapsulation efficiency was determined using the UV-Vis method. Furthermore, the release behavior and antioxidant capacity of JP-MVL were evaluated in vitro. The results displayed in the structure of JP-MVL were spherical with internal vesicles; the average particle size of JP-MVL was 5.63 μm, and the zeta potential was −69.50 mV. Analysis of the release results indicated that the best-fitting models in PBS (Phosphate buffered saline pH 7.4) and 0.9% NaCl were the Higuchi and first-order kinetic models, respectively. The cytotoxicity of JP-MVL at the appropriate concentrations was negligible and had a good protective effect against UVB-induced photodamage.     

不同热处理方式对青枣贮藏保鲜效果的影响研究

以西昌地区的青枣为试材,研究不同热处理方式对青枣贮藏保鲜效果的影响.结果表明：适宜条件的热水处理效果较好,其最佳条件为55℃处理10 min,30 d腐烂指数为8.61%,好果率为81.67%,可溶性固形物和酸含量分别为9.4%和4.06%,Vc含量为28.17 mg/100 g.     

木瓜复合果醋的酿制

以湖北长阳县的木瓜为基料，配以含糖量较高的苹果汁，制备营养丰富的复合木瓜果醋。结果表明，木瓜汁与苹果汁制成的复合果醋，色泽清亮自然，具有两种果汁的复合香味，口感和香味都优于纯木瓜醋和木瓜菠萝复合果醋。     

水蜜桃果醋的研制

本文介绍了以水蜜桃为主要原料，采用液态发酵和固态发酵相结合的特殊工艺，生产出品质优良的水蜜桃果醋。该工艺既提高了原料的利用率又保持了水蜜桃果醋所特有的风味。     

石英砂过滤澄清食醋工艺的改进

采用石英砂配料对石英砂滤料进行改进处理,应用这种过滤器对食醋进行处理,研究了配料种类、粒径、添加量及操作压力等因素对过滤效果的影响,确定了用配料过滤食醋的最佳条件。实验结果表明:在室温,选择配料a、配料粒径范围20~25μm、添加量为m(配料):m(固体杂质)=0.32、操作压力为0.03MPa的条件下,经改进石英砂过滤,杂质去除率可达92.3%,且处理后食醋的风味未变。     

低糖红枣果酱的研制

以红枣为主要原料,通过改变各辅料的添加量,用正交试验设计筛选出红枣低糖果酱的最佳配方,并对几种增稠剂的增稠效果和凝胶效果进行了探讨,确定了最佳增稠剂及其用量。产品可溶性固形物含量控制在40%以下,风味宜人,形态和口感良好。     

无花果醋的酿造工艺

该文以无花果干为原料，经酒精发酵和醋酸发酵制得无花果醋。添加0．15％的果胶酶进行酶解处理，解决了无花果中含有大量果胶不利于发酵的问题；固定化酵母进行酒精发酵，缩短了澄清时间。产品风味纯正，带有蜜甜味，是一种营养价值很高的保健型果醋。