Theses (MÉK)
Állandó link (URI) ehhez a gyűjteményhez
Theses collection of the Faculty of Agricultural and Food Sciences and Environmental Management. The collection was started in 2018.
At the University of Debrecen, in accordance with the 2022 amendment to the 2011 Higher Education Act, student theses are only accessible from devices connected to the University's Eduroam WiFi network or from a university IP address.
“The thesis or diploma work of a student who has successfully passed the final examination shall be stored in full in the academic system of the higher education institution, and a record shall be maintained thereof. The stored theses and diploma works – with the exception of parts classified as confidential in accordance with the relevant legislation – must be made accessible and searchable without restriction through the academic system.” Further info on the National Higher Education Act in Hungarian: Felsőokt. tv. (új) - 2011. évi CCIV. törvény a nemzeti felsőoktatásról - Hatályos Jogszabályok Gyűjteménye.
Böngészés
legfrissebb feltöltések
Megjelenítve 1 - 20 (Összesen 271)
Tétel Korlátozottan hozzáférhető Effect of irrigation and genetical factors on the agronomical and physiological parameters and the yield of sweet corn genotypeChyon, Redone Khan; Szabó, András; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarHungary’s sweet-corn growers face a drier, hotter Pannonian climate where a single 60 mm irrigation allowance must still deliver processor-grade ears of 300 g and ≥ 13.5 °Brix%. A 2022 field trial at Debrecen exposed thirteen commercial sh² hybrids to 60 mm or 120 mm of micro-sprinkler water under the region’s worst spring–summer drought since 1950 and tracked NDVI, SPAD, LAI, ear morphology, grain yield and °Brix. Messenger, Tyson and Royalty kept yields above 14 t ha⁻¹ in both regimes while Cash combined gourmet-level sugars with only modest penalty; canopy NDVI at the 1-m stage and ear diameter scored weeks before harvest served as cheap predictive proxies. Matching cultivar to water budget—Messenger for ≤ 60 mm, Tyson or Royalty for 120 mm, Cash for premium °Brix contracts—lets growers stabilise income, while staying below 70 000 plants ha⁻¹ under deficit and timing the final 30 mm at blister stage safeguards kernel set without lodging.Tétel Korlátozottan hozzáférhető Analysis and Risk Assessment of Heavy Metal Contamination in Fresh ProduceMohd Amran, Muhammad Alsyahid Bin; Béni, Áron; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis thesis focuses on heavy metal contamination in fresh produce sold in Debrecen, Hungary, with a specific focus on apples, carrots, and lettuce. The concentrations of lead (Pb), cadmium (Cd), and chromium (Cr) were measured and compared to European Union safety limits by using Graphite Furnace Atomic Absorption Spectrometry (GFAAS). The results showed that apples from Kispiac and carrots from Aldi contained lead levels exceeding EU thresholds, while cadmium and chromium remained within safe ranges. A health risk assessment based on the Target Hazard Quotient (THQ) indicated that Kispiac apples posed a potential health risk due to lead exposure. In addition, nutrient analysis revealed excessive potassium and sodium levels in some samples are due to unsustainable farming practices. The study highlights the urgent need for stricter monitoring, improved agricultural management and sustainable farming practices to ensure food safety.Tétel Korlátozottan hozzáférhető The impact of different preparation processes on toxic and essential elements in diverse types of riceThammasuwan, Raiwin; Várallyay, Szilvia; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThe thesis was motivated by the growing global concern regarding the presence of toxic elements in rice, a staple food for over half of the world's population. While rice is a crucial source of dietary energy and essential nutrients, its cultivation in flooded paddy fields makes it efficient at absorbing contaminants like arsenic and heavy metals from the soil. Although managing agricultural pollution is a long-term challenge, the simple preparation methods in the household represent the most immediate line of defense for consumers. However, existing literature is fragmented, often focusing on single rice types or isolated toxic element reduction, neglecting the critical trade-off where methods that remove toxic elements can also deplete essential nutrients. This research aimed to fill this gap by providing a comprehensive, comparative analysis of how different pre-cooking techniques affect both toxic and essential elements across diverse rice types.Tétel Korlátozottan hozzáférhető Analysis of Sodium and Potassium Content in Thai Fish Sauce and its Health ImplicationsJiracharoenying, Apichaya; Béni, Áron; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarSeven Thai fish sauce samples were analyzed for their sodium and potassium content. The analysis was done by flame emission spectroscopy method. Of all the samples, five were traditional, while the two were labelled as low-sodium. The result was used for analysis based on nutrition and exploring of the low-sodium fish sauce claim. The study found the average sodium content of Thai fish sauce to be 105.4 grams per liter (SD = 20.50; n = 7). One serving of 15 milliliters will provide 79.07% of European Food Safety Authority’s recommended sodium dietary intake (RDI) of 2,000 milligrams for adults. Compared with traditional fish sauce, low-sodium fish sauce truly contains less sodium with the difference 21.13 % on average. The average potassium content of analyzed fish sauce samples was found to be 3,248 milligrams per liter (SD = 246.3; n = 7), While respecting the recommended sodium dietary intake of fish sauce, Thai fish sauce may contribute to the maximum of 1.76% of the 3,500 milligrams potassium RDI for adults.Tétel Korlátozottan hozzáférhető Improving abiotic stress tolerance of soybean genotypesAmorim Herculano, Eduardo Márcio; Ábrahám, Éva Babett; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThe purpose of this study is to examine whether foliar nutrient treatments can improve the abiotic stress tolerance of genotypes of soybean (Glycine max L.) grown in Hungary under drought-prone and non-irrigated conditions. The research focuses on assessing the effects of foliar applications of selenium (Se), silicon (Si), and sulfur (S) – individually and in combination – on key morphophysiological and yield parameters of different soybean genotypes. In 2022, four varieties (Ananda, Suraja, Yakari and Pocahontas) were tested under Se, Si and Se + Si treatments, whereas in 2023, the varieties (Paula, Suraja, Yakari and Pocahontas) were treated with Se 2.5mg m-2, Optysil, S, and Novosil.Tétel Korlátozottan hozzáférhető Impact of foliar nutrient applications on winter barley agronomic traitsBah, Alhaji; Csajbók, József; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarIn summary, the experiment demonstrated that genotypic resilience and integrated nutrient management are key determinants of barley performance under climatic stress. Mv Fáta’s physiological stability and the synergistic effects of silicon and micronutrients underscore the importance of scientifically informed, adaptive management practices. The findings provide practical guidance for improving the productivity and sustainability of winter barley cultivation in Hungary and contribute to the broader understanding of crop-climate interactions in temperate cereal systems.Tétel Korlátozottan hozzáférhető Utilization of cheese whey in sourdough bread productionSisombath, Keosourida; Diósi, Gerda; Tóth, Réka; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarIn this thesis, the utilization of cheese whey, a dairy by-product, as sustainable ingredients in sourdough bread making is studied. In this study, the substitution of water with whey in different proportions (0-100%) on three different flours: winter wheat, rye, and oat were tested to assess the fermentation, dough making, and bread quality. Results indicated that whey improved the microbial activity through lactose and protein content, thereby hastening the pH reduction and increasing the acidity in the fermentation. This resulted in improved, texture and shelf life of the bread. Technologically, whey had a positive effect on baking loss, with a better retention of moisture, as well as on loaf volume and shape stability with the best results for 50-100% whey substitution depending on the type of flour used. Overall, the research concludes that the inclusion of whey not only enhances bread quality but also contributes to sustainable food production alongside waste reduction in the dairy industry.Tétel Korlátozottan hozzáférhető Predicting the Environmental Concentration of Nitrate in Soils of Debrecen under Multiple Land Uses by HYDRUS modellingNeha; Péter Tamás , Nagy; Tamás , Magyar; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis study investigates the leaching behaviour of nitrate and ammonium in three types of soils from Debrecen, Hungary, i.e., agricultural (Pallag), industrial (WWTP), and urban (VKI) soils—through soil leachate experiments, soil column tests using ammonium nitrate treatments at 1 g L-1, 5 g L-1, and 10 g L-1 concentrations, and long-term predictive modeling. Particle size distribution analyses revealed the texture of agricultural soil as sandy loam with a high proportion of silt and fine sand, while industrial and urban soils are richer in clay and silt, highlighting higher water retention capacity and lower permeability. Therefore, soil columns (0–40 cm) were prepared with upper and lower layers representing real field conditions, and further HYDRUS model is used to simulate leaching behaviour over 8 years of precipitation data. Results confirmed the high mobility of nitrate. In agricultural soil, nitrate migrated almost entirely to lower layers at high doses, whereas urban soils retained more nitrate in the top horizon. WWTP soils exhibited substantial surface accumulation but also notable subsoil enrichment, suggesting sensitivity to loading and potential groundwater risks. Leachate experiments showed the impact of super-absorbent polymers on soil pH and nitrate leaching. Unexpectedly, additions of bentonite, Zeba, and Stockosorb did not restrict nitrate leaching. The study calls for serious implications to be drawn for sustainable nitrogen management in agricultural, industrial, and urban soils to prevent long-term environmental impacts and conserve groundwater resources.Tétel Korlátozottan hozzáférhető Advances and Prospects of Smart Packaging in Food Safety MonitoringZhou, Yantong; Béni, Áron; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis thesis conducts a PRISMA-aligned scoping review (2015–2025) on smart packaging for food-safety monitoring, covering color indicators, gas sensors (O₂/CO₂/NH₃/H₂S), time–temperature indicators (TTIs), pathogen assays, and antimicrobial films. Evidence shows TTIs and gas-sensing labels deliver the most near-term operational value for cold-chain auditing, while antimicrobial films extend shelf life with migration and sensory trade-offs. Pathogen-focused labels achieve lab-level sensitivity but remain limited by matrix effects and workflow constraints, suggesting targeted use at critical control points. Techno-economic and life-cycle reasoning indicate benefits are strongest when waste reductions approach or exceed ~10%, and when deployment is integrated with HACCP and GS1-based traceability. Adoption hinges on calibration transfer, food-contact safety, and data-governance compliance (EU 1935/2004; 450/2009). Overall, the work specifies when and how smart packaging measurably improves safety, quality, and waste outcomes in real supply chains.Tétel Korlátozottan hozzáférhető Effects of irrigation and genotype on the agronomic performance and physical parameters of sweet cornPhakonekham, Ananda; Szabó, András; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis thesis tests fifteen sweet corn genotypes under irrigated and non-irrigated conditions to identify those hybrids with good agronomic performance, kernel quality and yield stability. The study focuses on structural characteristics (plant height, lodging), physiological (SPAD, NDVI, LAI) and market characteristics (Brix and color characteristics) to quantify the impacts of genotype and water regime relationships on final commercial value. Results show that water availability is a dominant driver, but genetic differences are still very significant, there are certain genotypes that retain physiologic strength and yield under moisture stress. Genotypes 11, 12 and 14 consistently show better performance in both environments, showing greater stability, much greater yields and more consistent canopy vigor. The study concludes that physiological metrics such as SPAD, NDVI and LAI are not just descriptive, they are usable early screening tools for breeding programs. In short, the thesis suggests a combination of water aware agronomy and targeted genotype selection is the way forward for consistent high value sweet corn production.Tétel Korlátozottan hozzáférhető Effect of lactational feed supplementation with yeast, arginine, selenium, and vitamin E on the colostrum and milk composition of primiparous DanBred sows.Yang, Jiayu; Szabó, Csaba; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis study investigated the effects of lactational feed supplementation with yeast, arginine, selenium, and vitamin E on the colostrum and milk composition of primiparous DanBred sows. Colostrum composition changed markedly within the first 24 hours after farrowing, with total protein and immunoglobulin concentrations decreasing and lactose increasing, reflecting the physiological transition from immunity transfer to milk production. Arginine and antioxidant supplementation stabilized nutrient and antibody levels, suggesting improved mammary blood flow and oxidative balance, whereas yeast had only minor effects. These dietary interventions influenced colostrum stability but did not alter the natural progression toward mature milk. The results confirm that appropriate maternal nutrition during late gestation can enhance colostrum quality, passive immunity transfer, and early-life performance of piglets.Tétel Korlátozottan hozzáférhető INVESTIGATION OF THE SOIL POLLUTION-REDUCING EFFECT OF BENTONITE IN SANDY SOILSALTARSHA, MAYSSA; Nagy , Péter Tamás; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThe imperative need to surmount the low productivity and harsh environmental risks of sandy soils is the rationale for this study. These soils are extremely susceptible to unsustainable management due to their limited water-holding capacity, leaching of nutrients, and risk of heavy metal mobility. Conventional fertilization methods are ineffective because a significant amount of the nutrients provided are lost outside the rooting zone, which pollutes groundwater and lowers agronomic efficiency. Although bentonite amendments have been demonstrated to overcome these constraints by improving the physical and chemical characteristics of soil, little is known about how they specifically affect the retention and bioavailability of micronutrients like Cu and Mn as well as nitrogen forms (NO₃⁻, NH₄⁺) in sandy soils.Tétel Korlátozottan hozzáférhető Comparative study of the growth and develppment of two basil varieties under aeroponic conditionsShah, Deven Mitul; Kovács, Györgyi; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarClimate change is one of the biggest issues facing the agriculture sector, as it lowers crop quality and yield. Sustainable alternatives are provided by modern soilless systems like aeroponics to combat this. Two types of basil, Ocimum basilicum "Genovese" and "Purpurascens," cultivated in controlled aeroponic environments have been studied in this study. Over the course of three months, measurements were made of morphological characteristics and photosynthetic performance (Fv/Fm and Fv/0). The results demonstrated that consistent growth and effective photosynthesis were encouraged by aeroponics with regulated lighting. The results show that aeroponics is a practical and flexible way to grow high-quality basil.Tétel Korlátozottan hozzáférhető A HAZAI TENYÉSZTÉSŰ BERRICHON DU CHER KOSOK KÖTELEZŐ ADATFELVÉTELEINEK ELEMZÉSEKrakkó, Máté; Oláh, János; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarAz állattenyésztésnek számos előnye van, például, hogy folyamatos munkalehetőséget biztosít, valamint segít a talaj tápanyagtartalmának a megőrzésében ezzel hozzájárulva egy kiegyensúlyozott és jövedelmező mezőgazdasági szervezet kialakításában. Szakdolgozatom célja a juhtenyésztés helyzetének, gazdasági jelentőségének és nyilvántartási rendszerének bemutatása, különös tekintettel a berrichon du cher fajtára és a kosok bírálati rendszerére. A dolgozat leíró jellegű, szakirodalmi forrásokra épül.Tétel Korlátozottan hozzáférhető Comparative efficacy of plant Tconditioners, essential oils versus fungicides in managing rust and powdery mildew in winter wheatMsigwa, Christopher; Tarcali, Gábor; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis research evaluated the effectiveness of plant conditioners, peppermint essential oil, and a conventional fungicide (Amistar) in managing rust fungi and powdery mildew in spring wheat under field conditions at the University of Debrecen, Hungary. A randomized complete block design with four treatments and four replications was used, assessing disease incidence and yield parameters. Results showed no significant differences in yield metrics among treatments, but yields (2.4 t/ha) were notably below Hungary's average (5.6 t/ha), suggesting losses due to disease pressure. The fungicide was most effective against both diseases, while the plant conditioner controlled rust fungi but not powdery mildew, and peppermint oil had moderate success with powdery mildew but little effect on rust. Weather conditions favored fungal development, with temperature and rainfall positively correlating with rust fungi, and humidity with powdery mildew. The study highlights the need for further research on optimizing alternative treatments within integrated pest management frameworks to sustainably manage wheat diseases.Tétel Korlátozottan hozzáférhető EFFECTS OF FUNGICIDE APPLICATION ON THE PRESENCE OF FUSARIUM GRAMINEARUM AND MYCOTOXIN CONCENTRATION ON THE EAR OF CORNHILLARY, ATALA; TARCALI, GÁBOR; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarIn this research, the effect of fungicide application on the presence of Fusarium graminearum and mycotoxin concentration on the ear of corn (Zea mays L) was studied, and the specific objective was to identify the effects of fungicide application on the presence of Fusarium graminearum infestation and also to determine the most effective dose of fungicides used in the control of Fusarium graminearum and the concentration of mycotoxins in the ear of corn. This experiment was conducted in 20 small plots of size (3 m x 6 m) at the practical garden of the Institute of Plant Protection of the University of Debrecen, located in the city of Debrecen in Hungary, under natural field conditions. The treatments for each field condition were assigned to experimental units using a completely randomized block design with four replications. T1 was mycorrhiza preparation (Mycostart), and the dose was 35kg/ha as indicated by the manufacturer. T2 for replication 2 was mycorrhiza preparation + Genium + Solvitis Sk plant conditioners under the dose of 35kg/ha and 4 l/ha, 60 ml/ 15 square meter plot, respectively. T3 was 1st spraying with Genium + Solvitis Zn + Solvitis Sk + Solvitis Mg plant conditioners with the dose 1 l/ha dose, 60 ml/ 15 square meter plot, and 15 ml/ 15 square meter. T4 Prosaro fungicide (Bayer) emulsifiable concentrate formulation (EC), which contains Prothioconazole + tebuconazole active substances, was used at a dose of 1 l/ha and 15 ml/15 square meter plot. The findings of this experiment showed that the application of fungicide could contribute to the control of Fusarium graminearum infection, and according to (Paul et al., 2008). Prothioconazole and Tebuconazole have proved their effectiveness in lowering both FHB infections and their secondary metabolites like DON and ZEA. Since the fungicide application was effective in reducing FHB severity value and it could have also improved the quality of the seeds by reducing mycotoxin levels. However, mycotoxin concentration was not evaluated in this study, but others have reported that Trichothecene groups of mycotoxins like DON and ZEA were significantly correlated (del Palacio et al., 2023; Machado et al., 2022).Tétel Korlátozottan hozzáférhető Examination of different control substances on corn smut and on the physiological parameters of the maizeDavis, Vivian Bunch; Gabor , Tarcali; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis research examines the effect of different control substances including synthetic fungicides and biological agents like mycorrhizal preparations and a plant conditioner on corn smut disease (Ustilago maydis) and the subsequent growth and yield of maize. The primary objective was to assess the efficacy of these treatments in managing the disease and their influence on key physiological parameters, specifically crop height and grain yield. The study employed a controlled experimental methodology where artificially inoculated corn plants were subjected to different treatments. Growth indicators, namely plant height and grain yield, were meticulously measured, and statistical analysis was utilized to determine the significance of treatment outcomes. The findings revealed that while many treatments did not significantly alter overall growth, Treatment 2, a combination of mycorrhiza and a plant conditioner, demonstrated potential for maximizing crop height and simultaneously managing corn smut infestation. Notably, the synthetic fungicide treatment (T4) emerged as the most effective strategy for increasing crop yield, although this effect was accompanied by some variability. Furthermore, the study emphasized the important influence of weather conditions on both the development of corn smut disease and the overall effectiveness of applied control treatments. In conclusion, the research suggests that a combined approach utilizing mycorrhizal preparations and plant conditioners hold promises for effectively controlling corn smut while also promoting maize plant growth. However, the study underscores the necessity for further research to validate these initial findings and to explore the long-term sustainability and broader applicability of these treatments under diverse environmental conditions. The substantial influence of weather patterns on disease dynamics and treatment efficacy necessitates attention in future research and the formulation of effective management methods.Tétel Korlátozottan hozzáférhető INVESTIGATION OF THE OCCURRENCE OF EUROPEAN PEAR RUST (GYMNOSPORANGIUM SABINAE) ON PYRUS COMMUNIS AND JUNIPERUS SPP. IN DEBRECENAous, Shaheen; Tarcali, Gabor; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarEuropean pear rust is considered a serious disease in different pear farms across Europe, especially in the organic ones. This disease has not been well studied in Hungary, possibly due to the decline in pear cultivation and the country’s mostly non-mountainous topography which limits the presence of Juniper species near pear orchards. In our survey for detecting and diagnosing European pear rust caused by Gymnosporangium sabinae, and other potential Gymnosporangium species on Pomoideae and Juniperus species conducted between May 2024 and May 2025, and through using both macroscopic and microscopic and morphological characterization, only Gymnosporangium sabinae was identified. To increase diagnostic certainty, PCR (polymerase chain reaction) analysis was performed on extracted DNA to explore through DNA sequencing the phylogenetic relationship of the pathogen prevalent in this area in the next step. On the other hand, 6 Juniperus species were found to host the fungus, showing varying levels of susceptibility amongst which J. sabina showed the highest infection rate followed by J. media in terms of frequency. Literature review and our field observations in comparation with data obtained from agrometeorological station of DE AKIT DTTI Practical Garden, we suggest a strong correlation between the severity of infection and two key factors: (1) rainfall preceding and coinciding with juniper shortly before and during flowering and and pear leaf emergence, in combination with ambient humidity; and 2nd is the proximity of susceptible juniper species to pear trees. Some juniper species were found to carry minor or unnoticeable infections. Chemical treatments seem to be not challenging. However, lack of knowledge about managing the disease in organic farms raises the interest of more dedicated research, especially when removing the juniper species is not possible. Additionally, three field experiments were conducted to better understand the biology and infection mechanisms of the pathogen on pear trees after analysis of results in the next step, and to open the doors for more in-depth future research.Tétel Korlátozottan hozzáférhető The Effect of Endophytic Trichoderma Strains for the Germination Quantity and Quality on Monocots: Maize (Zea mays) and Sorghum (Sorghum bicolor) and the Inhibition of Fungi Infection on MaizeMaghanay, Mary Jaicha; Karaffa, Erzsébet Mónika; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis study explores the potential of two Trichoderma strains namely, Trichoderma afroharzianum TR04 (TR04) and Trichoderma simmonsii TR05 (TR05) as biofertilizers and biocontrol agents. The focus of this study is the effect of the strains on seed germination of maize and sorghum, as well as their antagonistic activity against Fusarium graminearum. Seed priming was performed and germination was done in a controlled in vitro condition. The findings showed that neither TR04 nor TR05 significantly improved germination quality. However, as demonstrated by re-isolation tests and the visual health of seedlings, TR05 demonstrated strong biocontrol efficacy, especially against F. graminearum and other fungi such as Aspergillus spp. It can be concluded that that under the conditions of this study, the Trichoderma strains particularly TR05 demonstrated notable biocontrol potential, especially in suppressing fungal pathogens such as Aspergillus spp. and Fusarium spp. but their application did not result in improved germination quality in maize or sorghum.Tétel Szabadon hozzáférhető INVESTIGATION OF MONGOLIAN SEA BUCKTHORN ((Hippophae rhamnoides spp. Mongolica) - NUTRITIONAL STUDY -Javkhlant, Usukhzaya; Máthé, Endre; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási KarThis thesis explored the nutritional composition and antioxidant potential of Hippophae rhamnoides spp. Mongolica, a sea buckthorn species native to Mongolia. The study sought to assess whether the particular sample of Mongolian sea buckthorn has qualities that justify its inclusion in health-promoting diets and nutraceutical applications, given the increasing interest in natural antioxidants and functional foods. Investigated through both biological tests and chemical analysis. Drosophila melanogaster (fruit flies) were used in sugar manipulation experiments to simulate metabolic stress conditions. The sea buckthorn supplementation improved developmental outcomes in the flies with high sugar diets, implying protective antioxidative or metabolic effects. Furthermore, a functional food product was developed using the sea buckthorn samples.