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槐米色素对羊毛织物的染色工艺设计 总被引：2，自引：0，他引：2
研究了槐米色素对羊毛织物的染色性能。以表面色深度（K/S）更深、染色牢度更好、颜色更黄（b＊）为要求,探讨染液pH值、媒染剂、染色温度及染料用量对槐米染羊毛织物染色性能的影响。研究结果表明,在浴比1∶30条件下,槐米染料对羊毛织物的染色适宜的染液pH值为4～6,宜采用铝后媒染色,且媒染剂的用量为5%（o.w.f）左右,... 相似文献
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Genetically modified (GM) canola is the most widely grown oilseed crop in Canada. At this time, commercially produced GM canola cultivars in Canada have the events GT73/RT73 and Ms8xRf3. Commercial seed sale of canola cultivars containing the GM events such as OXY235 and T45 has been discontinued. Adventitious presence of GM seeds and grains in non-GM grains is a concern for international grain trade, and development of effective detection methods is important. A multiplex qualitative PCR procedure was established for the detection of the GM canola events OXY235, Ms8xRf3, T45 and GT73. The presence of the GM canola events was also successfully detected in ground spiked wheat and barley grain samples prepared at 0.1%, 0.5% and 1.0% levels (w/w). The GT73 real-time PCR assay was successfully used to quantify DNA extracted from spiked ground canola samples consisting of 5%, 1%, 0.5% and 0.1% GT73 (w/w). 相似文献
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Mançanares CA Santos AC Piemonte MV Vasconcelos BG Carvalho AF Miglino MA Ambrósio CE Neto AC 《Microscopy research and technique》2012,75(10):1329-1333
We performed a macroscopic and microscopic study of the tongues of common opossums, Didelphis marsupialis, from South America. We studied two males and two females. We collected morphometric data on the tongue with precision calipers. For the light microscopy and scanning electron microscopy analyses, we fixed tissue fragments in 10% formaldehyde and 2.5% glutaraldehyde, respectively. The opossum tongues averaged 5.87 ± 0.20 cm in length, 3.27 ± 0.15 cm in width at the lingual body, and 3.82 ± 0.15 cm in width at the root. The mean thickness of the lingual body was 1.8 ± 0.1 cm, and the thickness of the root was 3.82 ± 0.15 cm. Sharp filiform papillae were scattered across the entire tongue; conical filiform papillae occurred on the lingual body and tongue tip; fungiform papillae were scattered among the filiform papillae on the lingual body and tongue tip; and there were three vallate papillae at the root of the tongue. We found two strands of papillary projections in the tongue root. Despite the low variability observed in the lingual papillae, the morphological data obtained in this study may be related to the opossum's diverse food habits and the extensive geographic distribution of the species throughout America. Microsc. Res. Tech. 2012. © 2012 Wiley Periodicals, Inc. 相似文献
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Abdolali Mohagheghzadeh Mohammadreza Shams‐Ardakani Alireza Ghannadi 《Flavour and Fragrance Journal》2000,15(2):119-122
The detailed composition of distilled bud‐ and flower‐bearing tops of Zataria multiflora was investigated by several analytical techniques (GC, GC–MS, FT‐IR, 1H‐ and 13C‐NMR). The volatile oil of the former consisted mainly of oxygen‐containing monoterpenes (84.81%) and sesquiterpene hyrocarbons (11.88%), whilst the volatile oil of the latter consisted mainly of oxygen‐containing monoterpenes (81.78%), monoterpene hydrocarbons (7.33%) and sesquiterpene hydrocarbons (6.96%). The major components for the two volatileyoils were linalol (62.22% and 60.39%), linalyl acetate (11.52% and 8.55%), β‐caryophyllene (7.34% and 4.53%). Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
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该文以信阳群体种紫色芽叶为原料,分析茶鲜叶主要生化成分,通过对紫色芽叶制品和对照组绿色芽叶制品的理化分析和感官审评,旨在对紫色芽叶的信阳红茶适制性及加工工艺进行研究。结果显示：紫色芽叶固定样的花青素显著高于对照组（P＜0.05）,茶多酚、氨基酸、咖啡碱和水浸出物与对照组相比差异不显著（P＞0.05）;紫色芽叶红茶样水浸出物含量显著高于对照组（P＜0.05）,茶多酚、氨基酸、茶黄素和茶红素与对照组相比差异不显著（P＞0.05）;紫色芽叶红茶样感官品质稍高于绿色芽叶红茶样,表现出良好的适制性。综上分析,夏季紫色芽叶表现出较好的红茶适制性。 相似文献
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研究双乙酸钠、乳酸双芽菌和脉冲强光杀菌处理在煎制鲤鱼4 ℃贮藏过程中的保鲜效果。通过用双乙酸钠（1.1 g/100 mL）、乳酸双芽菌（0.21 g/100 mL）结合脉冲强光杀菌（能量590 J,距离9 cm）对煎制鲤鱼鱼块进行处理,定期分析对照组和处理组样品的pH值、硫代巴比妥酸反应物（thiobarbituric acid reactive substance,TBARs）值、挥发性盐基氮（total volatile basic nitrogen,TVB-N）含量、质构和感官属性等指标。结果表明：与对照组样品比,双乙酸钠结合脉冲强光杀菌处理组样品具有较低的pH值以及较高的水分含量,而乳酸双芽菌结合脉冲强光杀菌处理组样品的菌落总数较低,其水分分布也优于对照组,处理组均能有效地保存煎制鲤鱼;然而,双乙酸钠、乳酸双芽菌结合脉冲强光杀菌处理在贮藏期间表现出更好的抗菌效果,其显示出更强的抑制TBARs值和TVB-N含量升高的能力,且样品的质构和感官属性最好。因此,为延缓冷藏期间煎制鲤鱼的变质,双乙酸钠、乳酸双芽菌结合脉冲强光杀菌处理更为有效。 相似文献
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Arup Mistri Neeraj Verma Usha Kumari Swati Mittal Ajay Kumar Mittal 《Microscopy research and technique》2016,79(10):973-981
Surface ultrastructure of the gills of the angler catfish Chaca chaca was investigated to unravel the adaptive modifications associated with the feeding ecology of the fish. The fish is often found in mud or in soft substrates where they remain buried both for protection and to feed. Gill rakers present on the gill arch in most fish species are absent in this fish. The absence of gill rakers are associated with the feeding habit of the fish and is considered to facilitate the swallowing of captured prey smoothly without any hindrance. Highly corrugated surface of the gill arch and gill filaments could be associated to retain water/mucus to prevent dessicassion of the fish. Papillae like epithelial protuberances each bearing a taste bud at its summit toward the pharyngeal side of the gill arch is associated with the sorting of the food. Large number of mucous goblet cells on the gill arch epithelium are considered to secret copious mucus to lubricate the prey for easy swallowing. In C. chaca the gill septa between gill filaments are reduced. This could enhance the flexibility and permit the free movement of the gill filaments. Extensive secondary lamellae and infrequent mucous goblet cells on secondary lamellae are associated to increase the surface area to enhance efficiency of gaseous exchange. 相似文献
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对比分析了五指山茶树花花朵、花蕾与茶叶中的功能性成分茶多酚、粗多糖、总黄酮、总皂甙、超氧化物歧化酶、游离氨基酸含量差异,茶树花盛开花朵和花蕾中总黄酮和总皂甙含量高于茶叶,总黄酮含量分别为1 230 mg/100 g和1 130 mg/100 g,总皂甙含量分别为0.629 g/100 g和0.761 g/100 g;茶树花中茶多酚、粗多糖、游离氨基酸低于茶叶,茶多酚含量分别为6.2 g/100 g和5 g/100 g,粗多糖含量分别为1.63 g/100 g和1.15 g/100 g,游离氨基酸含量分别为7 g/100 g和11 g/100 g,而茶树花中检测到的超氧化物歧化酶含量远低于茶叶。 相似文献
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