城市居民超市猪肉购买行为及其影响因素分析

依据来自6个典型城市的261份调查问卷,对城市居民超市猪肉购买行为及其影响因素进行了实证分析。研究结果表明,被调查者中有51．3％主要到超市购买猪肉;猪肉消费者超市购买行为表现出明显的每次少量,经常购买的特点;消费者的年龄、学历、职业、家庭月收入,猪肉的质量、价格和品牌,以及超市的地理位置和购物环境对城市居民的超市猪肉购买意愿和购买比例有较明显影响。     

网络服装展示对消费者购买意向的影响机理

探讨服装数字化信息展示影响网络消费者购买意向的机理.在回顾国内外相关研究的基础上,通过对技术接受模型的延伸,以网上购物感知、行为意向作为基本研究变量,引入服装款式信息展示和服装价值信息展示作为自变量.通过实证研究,验证了此模型在网络环境下购买服装的有效性,并提出了营销建议.     

移动终端服装购买行为影响因素研究 ——多视角的消费者感知

对使用移动终端购买服装的消费者进行调研,探究服装购买行为的影响因素,构建理论模型并提出研究假设,基于多视角分析消费者感知对服装购买行为的影响.通过问卷调查,采用SPSS 23.0对所收集数据进行描述性统计分析、信效度检验、回归分析以及中介效应检验.结果表明:感知有用性、感知易用性、感知风险、感知他人评价质量、感知服务质...     

分析影响大米水分因素

大米水分是大米一个重要质量指标。该文从原粮供应至终端销售整个生产体系对大米水分有影响因素进行综合分析,以便生产企业参考。     

消费者服装产品知识对网上购买服装意向的影响

主要关注消费者的服装产品知识对其网上购买服装行为意向的影响.通过对技术接受模型的延伸,将影响网上购物决策的关键变量--网上购物感知、行为意向作为基本的研究变量,并在此基础上,引入消费者的服装产品知识作为自变量.通过实证研究,验证了此模型在中国网络购衣环境下的有效性,提出了营销建议.     

影响猪肉质的主效基因和候选基因

猪肉的品质问题已经引起了生产者和消费者的普遍关注,肉质性状直接影响到肉品的食用价值和经济价值。分子生物学技术的快速发展也促进了人们对于影响肉质相关基因的重视和研究。本文综述了与肉质相关的主效基因（Major Gene）烷氟基因（Hal gene）、单磷酸腺苷蛋白激酶（AMPK）γ3亚基基因（PRKAG3）和酸肉基因（Rendement Napole Gene,RN）以及脂肪酸结合蛋白基因（Fat Acid Binding Protein FABPs）、激素敏感脂肪酶（Hormone-Sensitive Lipase,HSL）基因和脂蛋白脂肪酶（Lipoprotein Lipase,LPL）基因等候选基因（candidate gene）的研究进展。      

茶多酚和维生素C对腌制猪肉亚硝酸盐残留量和脂肪氧化的影响

以腌制猪肉模型为材料,研究不同含量的茶多酚和维生素C对色泽、残留亚硝酸盐含量以及脂肪氧化TBARS值的影响。结果表明,茶多酚和维生素C都在一定程度上降低了腌制模型中亚硝酸钠的残留量,维生素C的作用效果要显著强于茶多酚(p<0.05)。腌制过程中TBARS值呈逐渐增加的趋势,茶多酚和维生素C有降低TBARS值的作用,茶多酚的作用效果要强于维生素C。在腌制过程中,维生素C组的色泽显著高于茶多酚组(p<0.05),而蒸煮后各组之间色泽差异不显著(p>0.05)。      

孜然精油对冷却猪肉保鲜效果的影响

为了延长冷却猪肉的货架期,将质量浓度为0、25、50、75mg/mL的孜然精油对冷却猪肉进行涂膜处理,并采用PE有氧包装形式,以pH、挥发性盐基氮（TVB-N值）、硫代巴比妥酸（TBA）、色差值和细菌总数为考察指标,评价孜然精油对冷却猪肉的保鲜效果。结果表明,质量浓度为50mg/mL的孜然精油保鲜效果最佳,显著优于对照组,在（4±1）℃条件下能将冷却猪肉保鲜期延长至14d。      

营养和安全因素对消费者牛奶产品购买意向的影响

以北京女性消费者为例,研究了营养和安全因素对牛奶产品购买意向的影响。制作标有不同营养和安全信息标签的牛奶产品,在北京市5个社区招募64名18~45岁女性受试者,进行问卷调查和产品选择实验。结果表明:在无价差条件下,受试者优先选择高蛋白和含益菌因子的产品,以及有机产品和3 d保质期产品;当价差为20%时,各营养安全声称产品与普通纯牛奶产品之间购买意向差异不显著;当价差为60%时,受试者对普通纯牛奶产品的购买意向最高。结论:消费者对各营养健康宣称产品的接受度有所不同,并与价格密切相关。     

腌制过程中添加木瓜蛋白酶对猪肉糜的影响

猪肉糜腌制过程中添加木瓜蛋白酶,测定其对猪肉糜品质的影响。结果表明,添加木瓜蛋白酶腌制,随酶添加量的增加,肉糜水溶性总氮含量及氨氮含量显著升高(p<0.05);水分活度没有显著性变化(p>0.05);pH呈显著下降趋势(p<0.05);CIEL*,CIEa*,CIEb*均显著升高(p<0.05),当酶添加量增加到一定程度时,呈平缓趋势;肉糜硬度、胶性、咀嚼性随酶添加量的增加均呈现显著降低趋势(p<0.01),凝聚性、黏着性呈显著升高趋势(p<0.05),弹性没有显著性变化(p>0.05)。色差值、TPA(Texture Profile Analysis)质构、氨氮、pH之间的变化均具有良好的相关性(p<0.01)。通过对肉糜加酶腌制工艺的研究,可为肉糜类制品的加工提供一定理论依据和方法指导。      

Sensory characteristics and consumer acceptance and purchase intention toward fresh-cut potatoes

For a new product to succeed in the market, it must be accepted by consumers. This study investigates consumer opinions on fresh-cut potatoes packaged under vacuum and under a modified atmosphere using home use tests. The data obtained were related to demographic characteristics and patterns of consumption and to purchase intention toward potatoes and other vegetables. The sensory characteristics evaluated by a panel of assessors trained in the sensory evaluation of potato were also considered. The results indicate that although both products were accepted by the consumer, vacuum-packed potatoes received slightly higher ratings and more consumers intended to purchase this product. PRACTICAL APPLICATION: The fresh-cut potato packaged under vacuum is a product with all the sensory characteristics that will be accepted by the consumers. The adaptation to the productive process at the industrial level, it can be performed with enough guarantees that the product will definitely be purchased by the consumers.     

Consumers' expected quality and intention to purchase high quality pork meat

Expected quality is believed to be one of the most important factors that influence consumers' intention to purchase food. The present study seeks to explore the concept of pork meat expected quality and compare it with self-stated consumer intention to purchase pork meat. The aim is attempted by means of a field research conducted in Greece, following a conjoint analytic procedure. Results show that quality expectations comply with intention to buy pork, in many aspects. However, several differences have been identified. More specifically, country of origin and marbling appear to be more important for respondents' purchase decisions than they are for their quality evaluations, while the opposite appears to be true for price. Finally, socio-demographic factors such as gender, level of education, place of purchase and consumption habits seem to influence perceptions.     

红曲米粉应用于猪冷鲜肉的保鲜效果

采用不同添加量的红曲米粉(100g肉样中含有红曲米粉0,0.0625g,0.125g、0.25g、0.5g、1g)应用于冷鲜肉,随冷藏天数(0,1,2,3,4,5,7,9d)的延长,测其pH及高铁肌红蛋白的变化。对其感官指标和理化指标进行测定,根据结果评价红曲米粉应用于猪肉的保鲜作用。结果显示添加量为0.125g/100g肉样和0.25g/100g肉样的实验组,不仅感官评价、理化指标等较好,保鲜效果也比较优异,相对于空白组,可以有效地将保存期延长3～5d。     

基于扎根理论的服装网络直播体验维度及其对购买意愿的影响机制

针对服装网络直播体验感较差的问题,采用深度访谈和扎根理论的研究方法,对服装网络直播体验的内涵、维度指标及其对顾客的服装购买意愿的影响机制进行深入剖析和探索。研究发现:服装网络直播体验包含服装产品体验、直播场景体验、直播效果体验、直播互动体验、情感体验、直播内容体验和直播优惠体验7个要素;其影响机制存在促进和抑制2种主体路径,促进机制主体路径为“网络直播体验—体验价值—顾客信任—顾客购买意愿”,抑制机制主体路径为“网络直播体验—体验价值—感知风险—顾客购买意愿”,这2条主体路径与刺激–机体–反应模型相吻合,并且在刺激和机体之间受到主播特征和顾客涉入度的调节作用。     

稻香肉加工工艺

介绍了稻香肉的加工工艺,重点讨论生产过程中的一些关键参数,以及这些参数对产品质量的影响。     

方便米饭原料适应性的因子、聚类分析研究

不同品种的大米对方便米饭的质量有很大的影响。本文通过因子分析、聚类分析对方便米饭的原料适应性进行研究,得到适宜加工成方便米饭的稻米原料的12个品质指标最佳取值范围:最低粘度1300~2000c P,最终粘度2000~2800c P,峰值粘度2000~2500c P,回生值900~1200c P,峰值时间>6min,糊化温度63~75℃,直链淀粉含量15.5%~17.5%(干基),蛋白含量<8%(干基),吸水率230%~275%,膨胀体积300%~340%,米汤碘蓝值>0.18,米汤干物质>20mg/g。通过这些指标可以对优质稻米品种进行有效筛选,为方便米饭工业化生产提供客观依据,同时为食味优良的稻米育种工作提供了理论依据。      

Quality perception,purchase intention,and the impact of information on the evaluation of refined Pacific cupped oysters (Crassostrea gigas) by Dutch consumers

BACKGROUND

Oyster refinement using land‐based pond systems is a new activity in the Dutch oyster sector. It increases the oyster's tissue weight and changes its sensorial properties. However, the response of Dutch consumers towards refined oysters is unknown. The research aim was to gain insight into the importance of oyster quality parameters, drivers for oyster consumption, and acceptance of refined oysters by Dutch consumers, taking into account the information given to them about the product and process.

RESULTS

Taste, texture, and odor are the most important oyster quality characteristics for Dutch consumers. The outcome of questionnaires showed that willingness to buy and pay is influenced by factors such as the oysters' country of origin, cultivation area, and flavor profile. Refinement did not affect willingness to buy and pay. Furthermore Dutch consumers seem to have a preference for the flavor profile of refined oysters. Consumer evaluation showed that refined Pacific cupped oysters were perceived as sweeter compared with non‐refined oysters. When information on the cultivation process was disclosed, overall appreciation of refined oysters by consumers increased.

CONCLUSION

New insights in the importance of oyster quality characteristics for Dutch consumers are generated that can be used in the development of refined Pacific cupped oysters. © 2018 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.     

Acceptance and purchase intent of US consumers for nonwheat rice butter cakes

ABSTRACT:  This study evaluated consumer acceptance and purchase intent of nonwheat butter cake formulations prepared with Thai jasmine rice flour. Three nonwheat rice butter cakes were prepared with varying amounts of powdered emulsifier (propylene glycol ester:diacetyl tartaric acid ester of monoglyceride, 8:2) at 0% (product A), 7.5% (product B), and 15% (product C) of the margarine content (15%) in the cake formulation. A commercial wheat-based butter cake served as the control. Consumers ( n = 400) evaluated acceptability of 9 sensory attributes using a 9-point hedonic scale. Overall acceptance and purchase intent were determined with a binomial (yes/no) scale. At least 81% of consumers accepted products B and C, of which 42.1% and 47%, respectively, would purchase the products if commercially available. Product A was neither liked nor disliked with an overall liking score of 5.39. The butter cake products were differentiated by textural acceptability (overall texture, softness, and moistness) with a canonical correlation of 0.71 to 0.79. Overall liking and taste influenced overall acceptance and purchase intent. Odor influenced purchase intent ( P = 0.0014), but not overall acceptance. The odds ratio of overall liking was 3.462 for purchase intent, indicating the probability of the product being purchased is 3.462 times higher (than not being purchased, P < 0.0001) with every 1-unit increase of the overall liking score. Based on the logit model, overall acceptance and purchase intent could be predicted with 89.3% and 83.3% accuracy, respectively. The study demonstrated feasibility of completely substituting wheat flour with Thai jasmine rice flour for production of butter cake products acceptable to American consumers.     

鲜竹叶汁肉粽肠生产工艺技术研究

对鲜竹叶汁肉粽肠的生产工艺进行研究,探讨了最佳工艺条件和配比。结果表明:鲜竹叶汁用量55%、蒸制时间60min、糯米用量75%、鲜竹叶比例1∶100时肉粽肠质量较好。