排序方式： 共有113条查询结果，搜索用时 15 毫秒
81.
Katalin Szabo Adriana-Florinela Cătoi Dan Cristian Vodnar 《Plant foods for human nutrition (Dordrecht, Netherlands)》2018,73(4):268-277
Alongside paper, plastic, metal and glass, an important segment in the recycling area is represented by the wastes of different vegetal processing industries. These by-products gained interest lately, in the context of food waste prevention and growing population number. In the tomato processing industry approximately, 8.5 million tons of wastes are generated globally, each year. The present study highlights the valuable bioactive constituents as lycopene, beta-carotene, glutamic acid or aspartic acid from the by-products of tomato processing industries, which can be revalorized as incorporated nutrients in functional foods. Tomato consumption is directly associated with the prevention of different chronic diseases and carcinogenesis, however the carotenoids bioavailability is a key factor in this process. Further, fiber content together with protein content of tomato seeds and benefits of their consumption are emphasized. Value–added food products obtained by tomato peels or seeds addition are exemplified in this review (bakery, meat products, pasta and noodles, dairy and oil products as well as jams and functional ice cream), in order to embrace next prototypes that can transform vegetal by-products in functional nutrients. 相似文献
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Marzieh Safari Farzaneh Nahari Alishah Hossein Kari Dolatabad Udonna Ndu Cristian P. Schulthess Ali Sorooshzadeh 《植物养料与土壤学杂志》2019,182(3):463-476
Cadmium (Cd) is a major pollutant in soils as a result of extensive use of fertilizers, mining and industrial discharges. Zinc (Zn) and certain bacterial species have been known to alleviate Cd toxicity in plants. In this study, the individual and combined effects of the application of Zn and Pseudomonas species with the aim of reducing Cd stress in wheat cultivars were investigated. Plants (durum wheat and bread wheat) were exposed to different concentrations of Cd and Zn, and either P. putida or P. fluorescens in a growth chamber. Concentrations of Zn, Cd, chlorophyll (Chl), carotenoid, hydrogen peroxide (H2O2), and malondialdehyde (MDA), as well as antioxidant enzyme activities were assayed. The addition of Zn in soils reduced the toxicity of Cd in durum wheat more than in bread wheat even though there was more uptake of Zn in bread wheat. Analysis of variance showed that by using Zn fertilizer and Pseudomonas species the amounts of peroxidase (POD), polyphenoloxidase (PPO), MDA, and H2O2 were reduced at three growth stages. Surprisingly, with increasing Zn concentration, Cd concentration in plant tissue was slightly increased, which suggests that adding Zn to soil could facilitate Cd desorption from soil particles. Application of Pseudomonas and Zn could be a promising solution to reduce detrimental effects of Cd, especially in durum wheat. 相似文献
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Leila Romdhane Yasser Mahmoud Awad Leila Radhouane Cristian Dal Cortivo Giuseppe Barion Anna Panozzo 《Archives of Agronomy and Soil Science》2019,65(6):846-866
This study investigated the effects of wood-derived biochar (BC) applied at 1% to a C-poor silty-loam soil in the drought-tolerant (D24) and in the drought-sensitive (P1921) Pioneer Hi-Bred maize hybrids in pot and field trials (NE Italy). D24 had better growth than P1921 under rain-fed conditions without irrigation and soil amendment. The addition of biochar increased root growth in D24 (+38% root area) and decreases it in P1921 (?9%) at the silking stage, while the fraction of finer roots (<250 µm diam.) was reduced in D24 and increased in P1921. This led both hybrids to maintain the maximum transpiration at a lower fraction of transpirable soil water (from 82% to 45% in D24, and from 46% to 22% in P1921). There were no significant variations in plant nutrient contents, productivity and in the protein and starch contents of the grains, whereas the lipid content was reduced by biochar, particularly in P1921 (2.6% vs. 3% DW, ?13%).We conclude that biochar can be profitably used to enhance drought tolerance in maize, possibly due to improvements in the physicochemical characteristics and the water content of treated soils, although maximum benefits are expected in drought-tolerant hybrids through increased root elongation and transpiration. 相似文献
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Cristian Paltineanu Silvia Nicolae Nicolae Tanasescu Emil Chitu Sergiu Ancu 《Erwerbs-Obstbau》2017,59(1):29-37
Plum and apple trees are the most widely spread fruit trees in south-eastern Europe. The main purpose of this paper is to characterize the spatial distribution of roots in medium and course textured soils to improve orchard management. ’Stanley’ plum cultivar grafted on Saint Julien A semi-dwarf rootstock and ’Topaz’ apple cultivar grafted on M.9 dwarf rootstock were studied in a temperate climate and medium and course textured soils. The trench technique was used. There was an intense concentration of roots near the trees and the roots did not occupy the whole soil space between tree rows. The finest tree roots in both species were prevalent. Root density was higher in tree rows versus inter-rows. Both the inter-row and in-row distances can be reduced to increase tree density if light penetration into canopy is sufficient. When a full irrigation regime is applied, a soil depth of 0.8?m would be sufficient for water application, and soil depths of 0.4 to 0.6?m would be recommended for deficit irrigation; water and fertilizers should only be applied over the surface area covering most of the roots. When a more strict control on root activity is desired, the tree roots could be cut vertically at 0.5–0.8?m distance from tree rows. The results could also be used in regions and countries with similar soil texture and climate conditions. 相似文献
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The purpose of this study was conducted to evaluate the use of a system of timed artificial insemination (TAI) and early diagnosis
of pregnancy in Nelore beef cows in order to reduce the breeding season (BS) from 150 to 90 days and analyze the factors affecting
the conception rate of cows selected for TAI. The study included 110 Nelore cows belonging to the Experimental Farm Capim
Branco, Brazil. The body condition scores (BCS) were evaluated, and those above 2.50 were included in the TAI protocol. Five
groups of cows were formed at intervals of 21 days postpartum and then commenced a 9-day progesterone protocol. Progesterone
devices were used three times. Statistical analysis of binary variables was performed by logistic regression in the program
Proc Logistic of Sas. A 5% of significance (P < 0.05) was used to determine the presence of statistical differences and the effect of independent variables on conception
rate. The TAI and early diagnosis of pregnancy reduces the BS from 150 to 90 days without changing the pregnancy rate. The
conception rate was not affected by the presence of the calf (P > 0.05), the corpus luteum (P > 0.05), the BCS (P > 0.05), or the number of reuses of the intravaginal progesterone device (P > 0.05). Therefore, this technique is beneficial for breeding Nelore beef cattle and can be used in anestrous cows with a
BCS above 2.50. Additionally, the progesterone devices can be reused to reduce the cost of the protocol without compromising
the results. 相似文献
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Grellet A De Battisti C Feugier A Pantile M Marciano S Grandjean D Cattoli G 《Veterinary microbiology》2012,157(1-2):214-219
Aiming at determining the prevalence and the risk factors associated to astrovirus infection in puppy, fecal samples were collected in 316 puppies (age from 5 to 14 weeks of age) from 33 French breeding kennels. Data were registered for each puppy, including age, breed, gender, origin of the dog, and feces quality. The samples were tested by specific RT-PCR for the presence of canine astrovirus. Astroviruses were identified in 20.9% (66/316) of the puppies and in 42% (14/33) of the breeding kennels. Young puppies (i.e. <7 weeks of age) and puppies from large breeding kennels were more likely to be infected by the astrovirus. No association between the quality of feces and astrovirus infection could be determined in this survey. 相似文献