共查询到19条相似文献,搜索用时 328 毫秒
1.
2.
3.
4.
5.
6.
清型芦笋沙棘胡萝卜混合果蔬汁饮料研究 总被引:2,自引:0,他引:2
用对比试验及正交试验确定了芦笋沙棘胡萝卜混合果蔬汁饮料的果蔬汁澄清条件及生产配方。芦笋沙棘胡萝卜混合果蔬汁的最适澄清条件为:混合果蔬汁用180mg/kg明胶在12℃下沉淀澄清处理16h后,再用60mg/kg的Ec3.2.1.5果胶酶在45℃条件下澄清处理3h,果蔬汁的透明度最好。芦笋、沙棘、胡萝卜混合果蔬汁饮料的最优配方组成为:混合汁含量500g/kg,砂糖含量100g/kg,柠檬酸含量1.5g/kg,香精用量1g/kg,饮料的综合品质较理想。 相似文献
7.
应用Ec3.2.1.5果胶酶以正交试验法对黑加伦果浆进行不同条件的处理,并且考虑到果汁加工的实际情况,选择出了最适的酶处理技术及参数,即在45℃条件下用60μg/g酶处理黑加伦原果浆4h,可提高黑加果汁出汁率10%,并对酶的处理过程进行了动力学分析。 相似文献
8.
应用Ec3.2.1.5果胶酶以正交试验法对黑加伦果浆进行不同条件的处理,并且考虑到果汁加工的实际情况,选择出了最适的酶处理技术及参数,即在45℃条件下用60μg/g酶处理黑加伦原果浆4h,可提高黑加果汁出汁率10%,并对酶的处理过程进行了动力学分析。 相似文献
9.
10.
对桃金娘澄清果汁的加工工艺进行试验研究,是在对桃金娘果实的主要化学成分及其加工特性进行分析的基础上进行的,主要包括多种果汁澄清方法的对比试验研究以及采用正交试验与模糊综合评判相结合的方法所进行的果汁配方优化组合研究并研制出了桃金娘澄清果汁的最优配方及科学合理的加工工艺. 相似文献
11.
野生西藏虎头兰组培技术研究 总被引:1,自引:0,他引:1
以野生西藏虎头兰种子为试验材料,应用组培技术开展种子无菌播种、原球茎诱导芽分化、试管苗生根等试验,初步筛选出不同发育阶段的培养基配方。种子萌发培养基为:Hyponex 1号1 g.L-1+Hyponex 2号1 g.L-1+6-BA1 mg.L-1+10%香蕉汁+2%苹果汁+蔗糖20 g.L-1+琼脂6 g.L-1+AC 1 g.L-1,种子萌发率达90%~98%;原球茎分化最佳培养基为:MS+NAA1 mg.L-1+5%香蕉汁+2%苹果汁+蔗糖20 g.L-1+琼脂6 g.L-1+AC1 g.L-1,芽分化率高达89%;壮苗生根最佳培养基为:1/2 MS+NAA1 mg.L-1+5%香蕉汁+AC 1.5 g.L-1+蔗糖20 g.L-1+琼脂6 g.L-1,生根率达100%。 相似文献
12.
本文研究了莲中不同部位原花青素的含量、稳定性及通过机械力化学效应结合的魔芋与原花青素缓释片工艺条件。结果表明 :莲房中原花青素含量最高 ,约为 5 5~ 9 5 g/1 0 0 g干重。原花青素在酸性的人工胃液中比较稳定 ,而在生理盐水和人工肠液中 ,高温处理时原花青素不稳定 ,金属离子对原花青素的影响各异。选用 1 2 0目魔芋粉、1 /5的淀粉、压力 40 0MPa条件下得到的缓释片在人工胃液及生理盐水中释放较慢 ,而在人工肠液中释放较快 ,且在 2 4h内可以恒速释放完全。 相似文献
13.
14.
对蝴蝶兰杂交种子进行了无菌播种,获得实生苗,开花后选择优良单株,以单株的花梗为外植体进行快速繁殖,获得分生苗,结果表明:蝴蝶兰胚培养的最佳培养基为Hyponex1号3.0g/L 香蕉泥50.0g/L;0.1%HgCl2 8 min消毒对嫩花梗节适宜,10min消毒生理年龄较老的花梗节;以无菌花梗苗为增殖材料,增殖最佳培养基为1/2MS 6-BA5.0mg/L NAA0.5mg/L 椰子汁10%;Hyponex1号3.0g/L;香蕉泥100.0g/L 活性炭1.5g/L有利于壮苗生根。 相似文献
15.
用丹宁沉淀法提取菠萝果皮蛋白酶,须经过多次洗涤、保护和激活,使酶从其复合物中游离出来。研究结果测得干酶得率约0.17%,皮汁酶活性一般为0.04万/g,干酶活性约20万/g,果皮蛋白酶酶促反应最适条件为:pH5.5-6.5,温度≤60℃。在一般室温下,酶促反应达到最大速度时间,鲜汁约1h,干酶约需1h-1.5h。 相似文献
16.
铁皮石斛组培育苗与组培苗培植技术研究 总被引:1,自引:1,他引:0
对铁皮石斛组织培养育苗和组培苗培植技术进行研究,结果表明:在MS培养基中添加6-BA 1.0mg/L+NAA 0.1 mg/L+IAA 0.5 mg/L+50 g/L椰子汁有利于芽苗的增殖;在1/2MS培养基中添加6-BA0.1 mg/L+IBA 1.0 mg/L+NAA 0.2 mg/L+50 g/L椰子汁有利于小苗生根和植株生长。搭建大棚移植铁皮石斛组培苗,采用高架苗床,选用松树皮和花生壳(v/v=4∶1)为基质,移栽成活率可达95%以上。 相似文献
17.
利用组织培养培技术对金线莲茎段组培苗进行研究试验。结果表明:以金线莲茎段为外植体,用0.1%升汞溶液消毒10 min效果比较好,杀伤力小,容易获得无菌材料,消毒之前剥开叶柄基部鞘状抱茎消毒效果好;芽增殖培养基用MS+糖30 g·L~(-1)+琼脂粉4.5 g·L~(-1)+马铃薯汁10 g·L~(-1)+激素以6-BA3.0 mg·L~(-1)+NAA0.5 mg·L~(-1)有利于金线莲的增殖与生长;在生根阶段以1/2MS+糖30 g·L~(-1)+琼脂粉4.5 g·L~(-1)+马铃薯汁10 g·L~(-1)+活性炭0.5 g·L~(-1)+NAA1.0mg·L~(-1)效果最理想,生根率达95%,根系发达,叶子展开墨绿色;种植理想的基质为泥炭土∶椰糠∶细沙=5∶3∶2,种植成活率高达97%,幼苗生长旺盛。 相似文献
18.
Studies of tree-to-tree variation in fruit traits are a pre-requisite for cultivar development. Fruits were collected from
each of 63 marula (Sclerocarya birrea) trees in Bushbuckridge, South Africa and from 55 trees from the North Central Region
of Namibia. The South African trees were in farmers fields, communal land and natural woodland, at three sites: Acornhoek
road, Allandale/Green Valley and Andover/Wits Rural Facility. The Namibian trees were all from farmers fields in three areas:
North east, North west and West. The fruits were partitioned into skin and flesh/juice to examine the extent of the variation
found in different components of marula fruits from different trees. Namibian fruits were significantly larger than those
from South Africa (26.7 vs 20.1 g), due to their greater pulp mass (22.2 vs 16.2 g), especially the flesh/juice component.
In South African fruits, those from farmers fields were significantly larger in all components (Fruit mass = 23.6 vs 19.3
and 18.0 g in natural woodland and communal land respectively). In Namibia, mean fruit mass did not differ significantly across
sites (25.5 − 27.0 g). However, within each sample there was highly significant and continuous variation between trees in
the pulp (S Africa = 7.5 − 31.3 g; Namibia = 8.3 − 36.0 g) and flesh/juice mass (S Africa = 2.2 − 7.6g; Namibia = 3.8 − 22.
6g), indicating the potential for selection of trees producing superior products. The fruits of the Namibian trees were compared
with the fruits from one superior tree (‘Namibian Wonder) with a mean fruit mass of 69.9 g The percentage frequency distribution
of fruit mass from trees in farmers fields in South Africa was skewed, while being bimodal in North east and North west populations
from Namibia, suggesting that at these sites farmers are engaged in domestication through truncated selection of the best
mother trees. It is concluded that there are trees in on-farm populations that have great potential to be propagated vegetatively
as selected cultivars. 相似文献