共查询到20条相似文献，搜索用时 890 毫秒
1.
以独蒜为原料,研究微波预处理优化黑蒜加工工艺和对黑蒜品质的影响。以微波预处理功率、微波预处理时间以及黑蒜制备处理时间为因素,采用正交试验进行工艺优化,并分析黑蒜的品质。结果表明,微波预处理黑蒜优化的工艺条件为:投放6个大蒜,微波处理功率490 W,微波处理时间12 s,黑蒜制备时间10 d时(其中前120 h温度为80℃,后期温度为70℃),相对湿度60%~80%之间,制备的黑蒜中总酚含量为(7.71±0.06) mg/g。在该条件下制备的黑蒜与不经微波预处理的黑蒜相比,总酚、还原糖及总酸含量有极显著提高,蒜氨酸变化不显著,感官评分较高。因此,微波可以用于黑蒜制备的预处理。 相似文献
2.
《农产品加工．学刊》2017,(5)
鲜豆腐易破碎,不易储存和运输。冻豆腐需在冷柜中储存出售,耗能较高,极大地限制其工业化发展。干制冻豆腐可以很好地解决上述问题,且复水后还能保持豆腐固有香味。探究干制冻豆腐在冷冻温度、冷冻和熟化时间及干燥工艺等方面参数,综合色泽、复水性和质构指标,得出优化工艺参数为-21℃下冷冻3 h后熟化20 d,再经微波600 W+热风45℃联合干燥75 min。在此条件下,干制冻豆腐产品的品质得到了提高,为工业化生产提供一定的可靠技术。 相似文献
3.
《华北农学报》2018,(Z1)
旨在通过不同浓度的GA_3、ETH结合低温处理大蒜鳞茎,以期探明快速解除金乡蒜休眠的技术与生理特性的变化,在不影响大蒜品质的前提下缩短大蒜生产时间。供试品种为金乡大蒜,休眠大蒜鳞茎为自常温下存储2周的鳞茎,萌发大蒜取自常温下存储16周的鳞茎。休眠大蒜用16种不同浓度配比的赤霉素和乙烯利激素溶液浸泡大蒜1 h,浸泡后取出,各处理以4,8,12,16℃低温处理4,8,12,16,20 d,比较不同处理的发芽率及大蒜苗株高、假茎粗及鳞茎各营养品质指标。结果表明,各处理中GA_3、ETH浓度分别为50 mg/L,150μL/L的溶液浸泡大蒜鳞茎后的萌芽率普遍高于其他处理,12℃低温处理大蒜鳞茎萌发速度普遍比其他温度处理后要快,低温处理20 d的大蒜鳞茎打破休眠最快。综合所有结果得出结论,使用GA_350 mg/L,ETH 150μL/L的混合液浸泡1 h,浸泡后12℃低温处理,是打破金乡蒜休眠最有效的措施,能够使大蒜鳞茎的休眠期缩短40 d以上,显著加快了大蒜鳞茎的萌芽速度,并且成熟大蒜的大蒜素、维生素C、可溶性糖等生理指标与对照相比没有明显不同。因此,在生产中利用此方法能够使大蒜提前播种,提高农民的经济利益。 相似文献
4.
微波真空干燥大蒜片的研究 总被引：11，自引：1，他引：11
利用微波真空干燥大蒜片使其水分降至7％左右，测试数据表明，用微波真空干燥所得的大蒜片的质量与冷冻干燥产品的质量非常接近，比传统的热风干燥(60℃)产品质量好得多。 相似文献
5.
以伽师瓜为试材,研究干制方式和包装方式对哈密瓜干贮藏期褐变的影响,分析非酶褐变因子与褐变度之间关系,并评价贮藏期哈密瓜干褐变风险。研究认为,与NaHSO3处理相比,阴干处理哈密瓜干贮藏过程中存在褐变发生风险,包装方式对哈密瓜干褐变无显著影响。贮藏过程中非酶褐变因子均发生变化,但与褐变之间的相关性显著受到干制方式的影响。不同处理条件下,可溶性蛋白含量与褐变度相关性均不显著;阴干处理条件下游离氨基酸、还原糖、Vc、总酚、类胡萝卜素等指标均与褐变度呈显著或极显著相关性;NaHSO3真空包装条件下褐变度与非酶褐变因子间均无显著相关性,哈密瓜干褐变抑制显著。 相似文献
6.
7.
以"西州蜜25号"哈密瓜为原料,在常温下分别对其进行0 mg/m3(对照组)和10 mg/m3臭氧(处理组)处理4 h,并置于常温(22±2)℃下进行贮藏。通过观察哈密瓜果实的腐烂症状,测定腐烂指数、可溶性糖等指标,研究10 mg/m3臭氧处理对哈密瓜贮藏品质的影响。结果表明:与对照组相比,臭氧处理可降低果实腐烂指数,减轻腐烂症状,抑制果实呼吸作用,并延缓果实硬度和抗坏血酸含量的下降速度,较好地维持了果实可溶性固形物、可滴定酸、可溶性糖和可溶性蛋白含量,一定程度上保持了果实的贮藏品质。 相似文献
8.
分别采用0.5、1.0 kGy剂量的电子束处理牛蒡鲜切片,测定分析其在(3±1)℃温度下贮藏8 d期间生理和品质的变化,研究不同剂量高能电子束辐照对鲜切牛蒡贮藏品质和褐变的影响。结果表明:高能电子束辐照处理能明显延缓鲜切牛蒡贮藏过程中的褐变;抑制多酚氧化酶(PPO)、苯丙氨酸解氨酶(PAL)、4-香豆酸辅酶A连接酶(4CL)的活性;降低总酚物质和丙二醛(MDA)含量,有助于维持鲜切牛蒡的贮藏品质。其中以1.0 kGy剂量辐照处理的鲜切牛蒡防褐变保鲜效果为好。 相似文献
9.
LED红蓝复合光间歇照射对西兰花贮藏品质的影响 总被引：1，自引：0，他引：1
将西兰花贮于4℃冷库中,用0.02 mm厚的PE膜覆盖,每24 h采用LED红蓝复合光(红蓝灯珠比29∶4,LED发光强度1 200 Lux)分别间歇照射6 h和12 h,以全避光为对照,研究LED红蓝复合光间歇照射对西兰花品质的影响。结果表明:贮藏初期,西兰花中的叶绿体仍然能够在红蓝复合光照射下继续进行光合作用,可溶性总糖和还原糖含量上升,随着贮藏时间的延长,叶绿体的光合作用减弱,糖类含量逐渐下降,但与对照相比,LED红蓝复合光照射能够有效抑制西兰花可溶性总糖和还原糖含量的下降及VC和可滴定酸的降解。贮藏15 d时,对照组西兰花已出现发霉腐烂和轻微褐变,而两个处理组均仅出现少量褪绿,其感官品质显著好于对照(P0.05)。其中以LED红蓝复合光间歇照射处理6 h对西兰花的保鲜效果最佳,可延长贮藏期5 d以上。 相似文献
10.
板栗非酶促褐变的基础物质及产物分析 总被引：1，自引：1，他引：0
研究与板栗非酶促褐变有关的基础物质和褐变产物,以确定板栗非酶促褐变的主要反应类型及褐变产物特征。测定板栗在加热前后葡萄糖、果糖、还原糖、15种氨基酸、维生素C、总酚、5-羟甲基糠醛(5-HMF)、类黑精和蒽醌的变化情况。研究结果表明：板栗发生非酶促褐变后,葡萄糖和果糖平均减少了53.25%和32.07%,还原糖平均减少35.78%,15种氨基酸均有不同程度的减少,维生素C平均减少41.85%,多酚平均减少了40.50%,5-HMF和类黑精平均增加了100%,蒽醌平均增加70.11%。试验证明板栗非酶促褐变反应包括美拉德反应、抗坏血酸氧化反应、多酚氧化反应,初步判断5-HMF、类黑精和蒽醌是非酶促褐变的反应产物。 相似文献
11.
Jens Jensen 《Euphytica》1979,28(1):47-56
Summary The high-lysine gene in Risø mutant 1508 conditions an increased lysine content in the endosperm via a changed protein composition, a decreased seed size, and several other characters of the seed. The designation lys3a, lys3b, and lys3c, is proposed for the allelic high-lysine genes in three Risø mutants, nos 1508, 18, and 19. Linkage studies with translocations locate the lys3 locus in the centromere region of chromosome 7. A linkage study involving the loci lys3 and ddt (resistance to DDT) together with the marker loci fs (fragile stem), s (short rachilla hairs), and r (smooth awn) show that the order of the five loci on chromosome 7 from the long to the short chromosome arm is r, s, fs, lys3, ddt. The distance from locus r to locus ddt is about 100 centimorgans. 相似文献
12.
G. H. Kroon 《Euphytica》1994,76(1-2):125-125
Summary
K x vadensis is a hybrid of K. blossfeldiana and K. marmorata obtained after doubling the number of chromosomes. 相似文献
13.
Hongyan WEI Jian ZHOU Jinguang LU Jingzheng SONG Qiongxi YU Zhihong JIANG 《Medicinal Plant》2019,(6):27-29
[Objectives]This study aimed to establish a QAMS(quantitative analysis of multi-components by single-marker)method for simultaneous determination of four phenol... 相似文献
14.
Summary Avoidance of rust fungi that was based on poor appressorium induction was previously found in Hordeum chilense. In the present study 95 accessions of Triticeae were screened for avoidance of Puccinia hordei. The percentage of appressorium formation per germinated spore ranged from 6 to 90%. On none of the 41 accessions of Aegilops, Agropyron, Elymus, Secale, Thinopyrum or Triticum studied was the rate of appressorium formation lower than 25%. Lower rates of appressorium formation were, however, found on accessions of wild barley species Hordeum brachyantherum, H. marinum, H. parodii and H. secalinum. Its implications in cereal breeding are discussed. 相似文献
15.
D. A. Bond G. J. Jellis G. G. Rowland J. Le Guen L. D. Robertson S. A. Khalil L. Li-Juan 《Euphytica》1993,73(1-2):151-166
Progress is being made, mainly by ICARDA but also elsewhere, in breeding for resistance to Botrytis, AScochyta, Uromyces, and Orobanche; and some lines have resistance to more than one pathogen. The strategy is to extend multiple resistance but also to seek new and durable forms of resistance. Internationally coordinated programs are needed to maintain the momentum of this work.Tolerance of abiotic stresses leads to types suited to dry or cold environments rather than broad adaptability, but in this cross-pollinated species, the more hybrid vigor expressed by a cultivar, the more it is likely to tolerate various stresses. 相似文献
16.
Chunli TANG Fengxian ZHAO Hongxia CHEN Jiabao MA Jiangcun WEI Meiyan QIU Zhen XIE 《Medicinal Plant》2019,(6):60-65
[Objectives]To optimize the water extraction process of Chinese Herbal Compound Man Gan Ning and establish a method for its extraction and content determination... 相似文献
17.
Mohammed Riyazaddin Polavarapu B. Kavi Kishor Are Ashok Kumar Belum V. S. Reddy Rajendra S. Munghate Hari C. Sharma 《Plant Breeding》2015,134(4):423-436
Sorghum shoot fly, Atherigona soccata, is one of the important pests of postrainy season sorghums. Of the 90 sorghum genotypes evaluated for resistance to this pest, RHRB 12, ICSV 713, 25026, 93046 and 25027, IS 33844‐5, Giddi Maldandi and RVRT 3 exhibited resistance in postrainy season, while ICSB 463, Phule Anuradha, RHRB 19, Parbhani Moti, ICSV 705, PS 35805, IS 5480, 5622, 17726, 18368 and 34722, RVRT 1, ICSR 93031 and Dagidi Solapur showed resistance in rainy season, suggesting season‐specific expression of resistance to A. soccata. ICSB 461, ICSB 463, Phule Yasodha, M 35‐1, ICSV 700, 711, 25010, 25019 and 93089, IS 18662, Phule Vasudha, IS 18551 and 33844‐5 and Barsizoot had fewer deadhearts than plants with eggs across seasons, suggesting antibiosis as one of the resistance mechanism. Five genotypes exhibited resistance with high grain yield across seasons. Correlation, path and stepwise regression analyses indicated that leaf glossiness, seedling vigour, trichome density, oviposition and leaf sheath pigmentation were associated with the expression of resistance/susceptibility to shoot fly, and these can be used as marker traits to select and develop shoot fly‐resistant sorghums. 相似文献
18.
E. Keep 《Euphytica》1986,35(3):843-855
Summary Cytoplasmic male sterility (cms) is described in the F1 hybrids Ribes × carrierei (R. glutinosum albidum × R. nigrum) and R. sanguineum × R. nigrum. In backcrosses to R. nigrum, progenies with R. glutinosum cytoplasm were either all male sterile, or segregated for full male fertility (F) and complete (S) and partial (I) male sterility. Ratios of F:I+S suggested that two linked genes controlled cms, F plants being dominant for one (Rf
1) and recessive for the other (Rf
2).Segregation for cms in relation to three linded genes, Ce (resistance to the gall mite, Cecidophyopsis ribes), Sph
3(resistance to American gooseberry mildew, Sphaerotheca mors-uvae) and Lf
1(one of two dominant additive genes controlling early season leafing out) indicated that Rf
1and Rf
2were in this linkage group. The gene order and approximate crossover values appeared to be: % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqef0uAJj3BZ9Mz0bYu% H52CGmvzYLMzaerbd9wDYLwzYbItLDharqqr1ngBPrgifHhDYfgasa% acOqpw0xe9v8qqaqFD0xXdHaVhbbf9v8qqaqFr0xc9pk0xbba9q8Wq% Ffea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qqQ8frFve9Fve9Ff0dme% aabaqaciGacaGaamqadaabaeaafaaakeaacaWGdbGaamyzamaamaaa% baGaaiiiaiaacccacaGGWaGaaiOlaiaacgdacaGG0aGaaiiiaiaacc% caaaGaaiiiaiaacccacaGGGaGaamOuaiaadAgaliaaigdakmaamaaa% baGaaiiiaiaacccacaGGGaGaaiiiaiaaccdacaGGUaGaaiOmaiaacs% dacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaaaacaWGsbGaamOzaSGa% aGOmaOWaaWaaaeaacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaiaacc% cacaGGGaGaaiiiaiaacccaaaGaamitaiaadAgaliaaigdakmaamaaa% baGaaiiiaiaacccacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaiaacc% cacaGGGaGaaiiiaiaacccacaGGGaaaaiaadofacaWGWbGaamiAaSGa% aG4maaaa!6E4D!\[Ce\underline { 0.14 } Rf1\underline { 0.24 } Rf2\underline { } Lf1\underline { } Sph3\]. Crossover values of 0.36 for Ce-Lf
1, and 0.15 for Lf
1-Sph
3were estimated from the relative mean differences in season of leafing out between seedlings dominant and recessive for Ce and Sph
3.It is suggested that competitive disadvantage of lf
1-carrying gametes and/or zygotes at low temperatures may be implicated in the almost invariable deficit of plants dominant for the closely linked mildew resistance allele Sph
3. Poor performance of lf
1- (and possibly lf
2-) carrying gametes and young zygotes during periods of low temperature at flowering might also account for the liability of some late season cultivars and selections to premature fruit drop (running off). 相似文献
19.
[Objectives] To determine the optimum extraction technology for total phenols of leaves in Acanthopanax giraldii Harms.[Methods]The single factor test and ortho... 相似文献
20.
Summary Apple and pear pollen was irradiated with doses of 0, 50, 100, 250 and 500 krad (gamma rays) and stored at 4°C and 0–10% r.h. From the in-vitro germination percentages an average LD 50 dose of about 220 krad was estimated. For both irradiated and untreated pollen a close and corresponding lineair relationship existed between germination percentage and pollen tube growth.Irradiated pollen was much more sensitive to dry storage conditions than untreated pollen, resulting in less germination and more bursting. Apparently, irradiation caused the pollen cell membrane to lose its flexibility faster than normal. Rehydration of dry-stored, irradiated pollen in water-saturated air restored germination percentages up to their initial levels. The importance of this procedure in germination trials is stressed. 相似文献