甜酒营养保健果冻的研制

[目的]探讨营养保健果冻研制的最佳配方。[方法]以甜酒、鸡蛋为原料并配以辅料,采用单因素试验考察不同原料对果冻品质的影响,利用正交试验进一步验证,得出了营养保健果冻研制的最佳配方。[结果]其最佳配方为：白沙糖甜叶菊混合液8 g、卡拉胶0.8g、甜酒34 ml、鸡蛋清10 ml、柠檬酸钠0.018%、草莓香精数滴。[结论]研制的该果冻是一种营养保健食品,特别适合中老年人食用。     

南香果果汁和果酒的香气比较分析

以新鲜南香果为原料酿制果酒,对南香果果汁与果酒的香气成分进行了比较分析。结果表明：香味独特的南香果果汁,发酵成果酒后,在原香味的基础上产生了大量的酯类和醇类的香味物质。     

发酵型黄米酒酿制工艺的研究

以黄米为原料,小曲甜酒药为糖化发酵剂,酿制黄米酒。通过正交试验,分析得出黄米酒的最佳酿制工艺条件,即蒸米时间为30min,酒药添加量为1%,发酵温度为27～29℃。在此条件下酿制的黄米酒颜色淡黄、澄清透明,具有清淡发酵香味、口感良好,质量符合有关食品标准。     

枣酒发酵条件优化试验

以临泽小枣为原料,研究了枣酒在发酵过程中pH、接种量及S02添加量对枣酒品质、感官指标及酒精度高低的影响。结果表明：当pH为5．5、接种量为10％、SO2添加量为120．omg／L时,酒精度含量最高,为11．6°。     

酿造干红葡萄酒新品系“左红三”选育初报

＂左红三＂是从（[山-欧）F2×（山-欧）F2]杂交后代中选育。果穗平均重148.5g、果粒重1.46g、可溶性固形物18.9%～25.6%、总酸1.32%～1.46%、出汁率64.2%～71.2%。可酿造干红葡萄酒,酒质好。早熟、生育期134～138d。结果枝率100%,结果系数1.93（个）。6年生树平均每公顷产量19.2～27.7t,3～6年生树每公顷产量5.3～19.3t。抗寒性强、产量和抗病力高。     

蓝莓酒酵母固定化载体的研究

以游离酵母为对照,测定海藻酸钠-壳聚糖和加有SiO2、Al2O3的海藻酸钠-壳聚糖为载体的蓝莓酒酵母固定化颗粒的机械强度、发酵后的酒精度和残糖量的变化、使用寿命及果酒风味,选出良好的固定化载体。结果表明,强化后的载体机械强度提高10.9%,酒精和糖度变化快,发酵周期为3d,果酒风味提高,最佳浓度配比为壳聚糖0.8%、SiO21.4%、Al2O30.8%。证明强化后的载体机械强度强,发酵效果好,稳定性高,使用寿命长,在实践生产中有利于生产成本的降低,发酵产品风味的改善。     

水肥耦合在贺兰山东麓酿酒葡萄上的应用效果研究

针对贺兰山东麓酿酒葡萄产业发展中存在的水肥利用率低下等问题,通过田间试验研究水肥耦合对酿酒葡萄生长发育及品质的影响。结果表明:灌水4 950m~3/hm~2,施肥960kg/hm~2能显著增加新梢长、粒径和果穗长。灌水6 450m~3/hm~2,施肥960kg/hm~2能显著增加副梢长、NDVI值、SPAD值,并显著提高株高、单粒重和产量。灌水4 950m~3/hm~2,施肥960kg/hm~2能显著增加叶片鲜干比、叶柄鲜干比,该方案下水分有效利用率、气孔导度、光合速率及蒸腾速率最高。灌水4 950m~3/hm~2,施肥720kg/hm~2能显著促进果实膨大,提升了糖酸比,但对可溶性糖、单宁、花色苷及总酚等品质因素影响不显著。总之,在施肥960kg/hm~2时,以4 950m~3/hm~2为基础,增加灌水量促进了养分吸收,改善了树体长势。灌水4 950m~3/hm~2,施肥720kg/hm~2提升了糖酸比,改善了果实品质。     

喀麦隆棕榈酒酵母分离物的酒精和糖的耐量及其蔗糖酶活性(英文)

在87 个喀麦隆棕榈酒酵母分离物中, 和2 个分离物对乙醇(16% ～17% ,v/v)和糖类具有高的耐量,可生长于含有高达50% (w /v)葡萄糖的培养基中,而且具有较高的蔗糖酶活性。在以糖蜜发酵乙醇的生产中具有潜在的价值。按形态学和生理特性推断,Ya2 属中间假丝酵母(Candida interm edia)而Yao4 为啤酒酵母(Saccharom yces cerevisiae)。     

腰果梨酒的果香保持作用研究

应用气相色谱分析方法,研究腰果梨酒的果香保持作用,结果表明,腰果梨汁中高含量的抗坏血酸和多酚有利于保持腰果梨酒的原果香。     

Ochratoxin A-producing fungi in Spanish wine grapes and their relationship with meteorological conditions

Forty vineyards from four wine making regions of Spain were sampled at three different growth stages in 2002 and 2003. The aim was to study the fungi associated with grapes and their ability to produce ochratoxin A (OTA) on synthetic media. Among the total mycoflora, 464 (7.7%) and 648 (10.8%) Aspergillus section Nigri (black aspergilli) strains were isolated in 2002 and 2003, respectively, and were classified into three groups: isolates with uniseriate heads, A. niger aggregate and A. carbonarius. The latter presented the highest percentage of OTA-positive strains (82% in 2002 and 76% in 2003) and produced the highest levels of toxin (2.5–25 μg g⁻¹). The sampling year, sampling date, the region and their interactions presented significant differences in the number of black aspergilli isolated. Most black aspergilli were found in 2003 and at harvest. A positive correlation between the number of black aspergilli found in grapes and the temperature in the field was found. Grapes from 2003, the warmest year, and from Costers del Segre, the warmest region, were significantly the most contaminated. No significant correlation between black aspergilli presence and other meteorological factors such as relative humidity or rainfall could be established. Musts from all the vineyards were also analysed in both years, although no OTA was found in either year.