Manufacture of Biquara (Haemulon Plumierii - Lacepède, 1801) Fishburger with Addition of Wheat Bran

Biquara is one of the main fish species caught in the northeast coast of Brazil but presents low commercial value. Therefore, the elaboration of biquara-based products with the addition of plant bran as a source of dietary fiber should be studied as a way to add value to biquara. The objective of the present study was to evaluate the physicochemical, microbiological, and sensory aspects of fishburgers made with biquara fillet with the addition of wheat bran (WB) (0, 1, 2, and 3%). The increase in WB decreased moisture and increased protein levels, ash, fiber, carbohydrates, and energy value. In addition, the inclusion of WB increased the cooking shrinkage and decreased hardness and cohesiveness of the samples. The fishburgers with the greatest WB levels presented a reddish-yellow hue. The microbial counts of the products were below the maximum limit allowed by the Brazilian legislation. The overall acceptance of the fishburgers improved with the addition of 0 to 2% WB. Therefore, the biquara fillets have a potential for the elaboration of fishburgers with the addition of 2% WB, once the products presented suitable physicochemical composition, sensory acceptance, and hygienic sanitary control according to the current national legislation.     

Growth and fillet quality attributes of five genetic strains of rainbow trout (Oncorhynchus mykiss) reared in a partial water reuse system and harvested at different sizes

Genetics and harvest size influence fish growth performance and product quality attributes, making selection of fish strain and harvest size critical for optimizing quality. Definition of performance and quality outcomes in a recirculating aquaculture system (RAS) environment may guide selection of fish stocks best suited for RAS farmers to meet production and product quality goals. Accordingly, five genetic lines of rainbow trout, Oncorhynchus mykiss were reared to 3 kg in a partial water reuse system and sampled at common harvest sizes (0.5, 1, 2 and 3 kg) to compare growth performance and product quality attributes. Fish weight affected fish processing yields and cook yields. Genetic line affected fish weight. When correcting for fish size, differences in fillet yields due to genetic line were present. Both fish weight and genetic line affected different organ indices, fillet colour scores and mortality. Muscle composition and texture were similar at each harvest, but changed with increasing fish size over time. Differences in growth performance and product quality traits due to genetic line identify variation in available fish stocks, and balancing change to these traits due to fish size can guide producer selection of fish stocks and optimal harvest size to meet individual production goals.     

赣州茶制品市场消费者行为分析及营销对策

[目的]分析赣州市茶制品市场的消费者行为,并提出营销对策,为该地区茶产业的结构调整及升级转型提供理论依据.[方法]基于计划行为理论(Theory of planned behavior,TPB)分析消费者行为影响因素,通过问卷调查得到赣州茶制品消费者相关数据,运用回归模型对消费者的消费意愿、消费行为及其相关性进行实证分析.[结果]消费意愿和消费行为受消费者人口统计学特征、消费动机、茶制品认知、产品要素、参照群体、企业营销等因素不同程度的影响;消费意愿与消费行为存在极显著正相关(P<0.01).TPB模型对赣州消费者茶制品消费行为具有很好的解释力.[建议]组合多种营销方式,提升市场扩散效果;打造企业形象名片,提升企业内在竞争力;普及茶制品知识,提高消费者认知;完善茶制品信息,提高消费者认可度;畅通有效信息渠道,赢得消费者口碑;购买渠道多样化,培育"互联网+".     

The intrinsic cause of color fading in sliced cooked cured beef during chilled storage

The relationship between color change and other physical and chemical characteristics of sliced cooked cured beef (SCCB ) during chilled storage were investigated using principal components analysis (PCA ) to determine the color fading causes. Samples were prepared and stored at 8°C for up to 35 days in a vacuum package to simulate a supermarket storage environment; related indicators were measured periodically every week. The results showed that the first PC explained 59.82% of the total variation, and the second explained 22.28%. PC 1 was a concentrated reflection of color changes of SCCB during storage and PC 2 was an environment factor causing the change of color. The change in apparent redness is mainly caused by redox reaction of the nitroso hemochromogen (NH ) (eigenvectors of a* , C and NH in PC 1 were all the maximum value of 0.28); a* was correlated with NH (0.96), free sulfhydryls (0.98), carbonyl derivatives (?0.95) formed during protein oxidation, and malondialdehyde (?0.98) and dienes (?0.92) formed by lipid oxidation. Color fading was significantly correlated with oxidizing and reducing power, existing forms of nitrogen and with the pH of the meat matrix. Changes in the internal environment of the sample initially influenced L* and b* values, and subsequently a* .     

O2O模式下生鲜农产品购买意愿研究

基于二项Logistic回归模型,建立了O2O模式下生鲜农产品影响因素的初始方程。树模型分析发现,年龄和月网购消费额的对数值的交互项具有统计学意义,二者具有协同效应,并得出最终的Logistic回归方程。最后,提出了发展生鲜农产品O2O平台的相关对策。     

FMEA模型构建及在出口水产品检验检疫风险管理工作中的应用

[目的]针对某机构出口水产品检验检疫风险管理中存在的问题,尝试建立故障模式和影响分析模型(FMEA),用于出口水产品检验检疫风险管理。[方法]针对检验检疫流程中的每一个过程,确定可能发生的故障模式,分析并列出可能由其带来的故障影响;采用特尔斐法和头脑风暴法确定风险事件发生频率、严重程度和可探测度的赋值规则并进行量化赋值,得到风险优先数(RPN),最终得到风险评价结果,并提出风险应对方式、风险管理保障措施及管理策略。[结果]构建的FMEA风险分析模型,可通过电子信息载体将风险分析结果和发现的风险点转化成风险参数,直接、快速、有效地作用于检验检疫流程。[结论]FMEA模型可有效提升出口水产品检验检疫风险管理水平,促进我国水产品外贸发展。     

井干式木结构墙体产品物化环境影响评价

基于生命周期评价法,根据工厂搜集的基础数据清单,采用GaBi6.0软件分析了1 m3井干式木结构墙体产品物化过程(从原材料开采到产品出厂的生命周期)的原材料消耗、能源消耗和环境负荷,并利用软件提供的CML2001评价方法和数据库评价了墙体产品生命周期范围内造成的环境影响。结果表明:1)生产1 m3墙体产品,全球变暖潜值、人体毒性、环境酸化、富营养化、光化学臭氧生成潜力和非生物资源耗竭的加权后结果(绝对值)依次为3.50×10-9、2.11×10-9、1.38×10-10、1.38×10-10、2.33×10-11、1.30×10-12,其中全球变暖潜值和人体毒性是墙体产品环境影响的主要类型,分别占环境影响总值的59.2%和35.7%;2)墙体产品从原材料获取到产品出厂可分为原材料获取、集成材制造、墙体制造和油漆与包装这4个阶段,4个阶段的环境影响结果(绝对值)分别为2.40×10-9、7.32×10-10、4.25×10-10、7.20×10-11,原材料获取阶段为环境影响的主要阶段;3)除去原材料获取阶段木材固定大量CO₂对环境的积极影响,在环境污染方面,人体毒性占总环境影响的35.7%,占污染的绝大部分,人体毒性主要由原材料获取、集成材制造和墙体制造这3个阶段贡献,且主要由这3个阶段的木材加工粉尘和电能使用造成。      

竹编制品造型设计的文化寓意与编织工艺——以竹编作品《双鱼送福小簸箕》为例

竹编制品既是人们日常生活中的日用品,也具有艺术欣赏价值,其蕴含的竹编文化可以陶冶人们的情操。同时,作为低碳环保的绿色产品,竹编制品迎合了时代的需要,日益成为人们追求绿色生活、品味生活的时尚产品。适应时代变化和市场需求,设计具有文化内涵和编作精良的竹编产品,是当代竹编设计师和竹编工艺师的时代责任。文章以竹编作品《双鱼送福小簸箕》为例阐述了竹编制品所应具有的文化内涵及精良的编制工艺。     

Effects of accelerated ageing on germination and biochemistry of eight rice cultivars

Rice seed deterioration rate due to aging is correlated with ambient temperature, relative humidity, and moisture. Eight cultivars were analyzed for differences in seed deterioration via accelerated ageing at 45°C and 100% relative humidity (RH) for 24, 48, 72, 96, 120 hr. Khazar and Neda had highest germination percentages when exposed to 120 hr seed ageing. For Lenjan, with increased seed ageing, moisture content increased from 9.8% in the control to 21.7% after the 120 hr treatment. Khazar and Shiroudi had the lowest decrease in shoot length. Root length decreased from 0 hr control to 120 hr treatment, and was lowest in Fajr and Khazar. Minimum electrical conductivity was observed in Neda and Fajr after 120 hr. Lowest increases in lipid peroxidation from control to 120 hr treatment was in Fajr, Khazar, and Neda. Neda and Khazar are the most suitable cultivars to store in the humid, sub-tropics of northern Iran.     

我国桉树用途概述

桉树产业的快速发展,使桉树的用途在我国越来越受到重视.作为世界三大速生树种之一,它为我国带来巨大的经济效益、生态效益和社会效益,且拥有十分广阔的发展前景.本文从桉树木材利用,桉树副产品及化工用途、桉树的园林观赏价值以及桉树的生态防护价值四方面综合归纳桉树的主要用途,为日后发展作参考.