The aim of the diploma thesis was the aroma active compounds assessment and sensory profile determination of various types of sea buckthorn (Hippopha rhamnoides L.). The theoretical part provides the detailed description of this plant, comprising the occurence, taxonomy, chemical composition and use. Experimental part summarizes the data obtained: identification and quantification of aroma compounds using the SPME – GC –FID and GC-MS method and evaluation of complete sensory profile. Various cultivars of sea buckthorn harvested in 2009-2012 were analysed. In total 23 various types of sea buckthorn were measured, 23 alcohols, 10 aldehydes, 11 esters, 14 ketones and 5 acids were found.

This study aimed to describe the biodiversity of the nitrogen-fixing symbiotic bacteria Frankia, to investigate the occurrence of Frankia in soil and seeds, and finally test the effect of a Frankia symbiosis on growth rate on Sea buckthorn (Hippophae rhamnoides) in an experiment. Data from the high-quality ribosomal gene database SILVA was used to reconstruct phylogenetic trees that revealed a genetic diversity in the genus that includes more strains than 16 described species so far. Strains of Frankia isolated from Sea buckthorn were found in cluster three, which also was the cluster of Frankia strains with the highest diversity in genera of plants possible for the symbiosis (actinorhizal plants).Maps of biogeographical diversity were created from the SILVA gene database and whole genome data from NCBI. Gene sequences of Frankia existed on all continents except Antarctica, which reflects the distribution of actinorhizal plants. From Sweden, only sequences of strains in cluster 1 in symbiosis with Alnus and Myrica were found, although Sea buckthorn is naturally distributed along the Swedish coast. DNA was extracted from seeds of Sea buckthorn and soil, in order to amplify gene sequences affiliated to Frankia, however the preliminary PCR results indicated that there was an issue of inhibition caused e.g. by humic substances – and which therefore would need more optimization.The experiment that was set up to study the relative growth rate (RGR) of Sea buckthorn plants inoculated with Frankia in comparison with controls did not show any difference in RGR during the first month of growth, which is a too short time for any further reliable interpretations.

No description available.

This diploma thesis deals with characterization of sea buckthorn oil. The sea buckthorn oil is frequently used as a food supplement and in dermatology. The first part summarizes the literature on sea buckthorn oil and its biological effects. In the experimental part, the thesis deals with the comparison of three commercially available preparates of sea buckthorn oils. We employed the basic characteristics of these oils, including the determination of peroxide value, iodine value, saponification value and acid value using titration methods. Spectroscopic measurements were used to further characterize the oils. The comparised sea buckthorn oil samples differed strongly in the peroxide value and in the stability during storage. In this respect, the oil from Relikt - Art Engel company had significantly lower value (2,95 mekv/kg) compared to other two oil samples studied from Elith Phito and Virde companies with peroxide values 12,68 and 8,97 mekv/kg. This value was also much less prone to increase during storage. A similar difference was also found in spectral and colorimetric characteristics of the oil samples, where this oil displayed much less optical density then the other two samples. This might be a result of different technology used for production of oils, or it may reflect some adulteration,...

Thesis (Ph. D.)--Swedish University of Agricultural Sciences, 2001. / Includes bibliographical references.

Dygliuotasis šaltalankis – žilakrūmių šeimos augalas, kuris dėl maistinių ir vaistinių savybių paplitęs beveik visame pasaulyje, ir pradėtas auginti plantacijose Lietuvoje. Be to šis krūmas pasižymi dekoratyvumu. Taip pat turi aktyvių invazinių savybių. Todėl šio darbo tikslas – įvertinti dygliuotojo šaltalankio tinkamumą želdynuose ir plantacijose. Darbo objektas – dygliuotojo šaltalankio (Hippophae rhamnoides L.) dekoratyvumas, jo tinkamumas želdynams ir paplitimas Lietuvos plantacijose. Įvertinus dygliuotojo šaltalankio dekoratyvines savybes dviejuose Lietuvos botanikos soduose nustatyta, kad VDU Kauno botanikos sode šaltalankiai pasižymėjo, rečiau šiai rūšiai būdinga, medžio gyvenimo forma, o VU botanikos sode išsiskyrė geresne bendra augalo būkle. Vertinant dygliuotojo šaltalankio kaip dekoratyviojo augalo tinkamumą želdynuose svarbu pažymėti tai, kad jo panaudojimą dekoratyviniame apželdinime riboja gausus vegetatyvinių atžalų prieaugis bei tirtoje imtyje išryškėjusi tokia tendencija, kad kuo dygliuotasis šaltalankis senesnis, tuo moteriškų individų derėjimas silpnesnis ir bendra abiejų lyčių augalo būklė blogesnė. Telefoninės apklausos metodu, pasirenkant netikimybinę proginę imtį, apklausta 11 šaltalankių plantacijos savininkų. Tyrimo metu, nustatyta, kad imtyje vidutiniškai vienas asmuo turi įveisęs 43,8 ha ploto šaltalankių plantaciją. Tirtuose ūkiuose dažniausiai auginamos dygliuotojo šaltalankio veislės yra ‘Botaničeskaja’, ‘Masličnaja’ ir ‘Avgustinka’. Dviejose... [toliau žr. visą tekstą] / Sea buckthorn (Hippophae rhamnoides L.) is a plant belonging to the Elaeagnaceae family, which is found almost everywhere in the world for food and medicine properties and it is started to grow in plantacions of Lithuania. In addition, this shurb has decorativeness. Also, it has active invasive properties. So, the aim of this work is to assess the suitability sea buckthorn plantings and landscape analysis experience growing plantations. Object – sea buckthorn (Hippophae rhamnoides L.) decorativeness, its relevance and prevalence of Lithuania plantations. The evaluation of sea buckthorn decorative features two Lithuanian botanical gardens established that VDU Kaunas Botanical Garden of mulberry marked, sometimes this species is characterized by the tree of life form, and the VU Botanical garden, stood a better overall plant health. Assessment of sea buckthorn plant suitability as an ornament green plantations it is important to note that the use of plantation design decorativeness limit excessive vegetative growth and vegetative propagation in the investigated sample of such a trend became apparent that the sea buckthorn older, the women's individual and overall coherence of the weaker of the two sexes of the plant condition worse. Telephone survey method, the choice of commemorative sample of 11 interviewed buckthorn plantation owners. The study showed that the sample average, one person has planted 43,8 hectares of sea buckthorn plantation. Studied most widely grown on farms... [to full text]

The hereby work describes a new product - herbal liquor containing antioxidants of elderberry and sea buckthorn. It is completely designed, manufactured and tested by a sensory analysis. I performed everything using a simple, low capital technologies, and raw materials, which could easily grow on soils in LF areas. Thus would these LF areas have an appropriate industrial applications . Since LF areas are often areas with high unemplyements I think the realization of such production could bring new job opportunities.

Diploma thesis deals with determination of vitamin C in various cultivars of sea buckthorn (Hippophae rhamnoides, L.) and quince (Cydonia oblonga, Mill.). In theoretical part, there are mentioned basic information about these less known fruit species, their medically significant substances and utilization of these fruits. Various methods for determination of vitamin C are discussed with focus on HPLC and extraction of vitamin C from the matrix. In experimental part, the most suitable column (Gemini C18, 150 x 4,6 mm; 5 m) was chosen from six various columns. Analysis of vitamin C in various cultivars of quince and sea buckthorn fruits were carried out on this column. The various types of matrix preparation and two different separation systems (method with oxalic acid and system with phosphate buffer and methanol as a mobile phases) were investigated too. Vitamin C was determined as an ascorbic acid.

No description available.

Tofu is a plant based product made from soybeans, water and a coagulant. The coagulant together with heating enables the formation of a soy curd (tofu). The proteins that dominates in soybeans are β-conglycinin (7S) and glycinin (11S). The composition of the proteins differs between soybean cultivars, which also affects the formation of the tofu. The object in this study was to evaluate the vitamin C content and the stability of vitamin C during processing and storage in an ecological tofu-product after enrichment of Sea Buckthorn to increase the vitamin content. Furthermore, the use of germinated soy beans instead of soaked soybeans in the production of tofu was evaluated. When Sea Buckthorn was added to the soymilk it resulted in a decrease in pH from 6.3 to 5.5, which affected the formation of the soy curd negatively as the optimal pH is between 6.0 and 6.5. By adding alkali to reach pH 6.3 it was possible to achieve a soy curd when Sea Buckthorn powder was added. Sea Buckthorn increased the vitamin C content in the product to 32 mg/250 g but only 10% (about 3 mg) remained after four weeks storage. The loss of vitamin C was large in both processing and storage of the tofu. An additional loss of 7- 14% was detected during 10 minutes heating (60°C). Germination of soybeans did neither affect the amount of protein, nor the vitamin C content in tofu. To produce a tofu with more than 15% of RDI for vitamin C in one serving (100 g) the amount berry powder to be added in the production of 250 g tofu must not be less than 31 g (400 mg vitamin C), based on losses up to 90-95% during the process and storage. Hence the huge amount of berry powder that must be added, other ways to decrease the degradation of vitamin C is necessary to be investigated.