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Bulletin of the Transilvania University of Brasov. Series II: Forestry • Wood Industry • Agricultural Food Engineering最新文献

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Development of an Assortment of Semi-Hard Cheese with the Addition of Za`'Atar as a Functional Ingredient 开发添加 Za`'Atar 作为功能性成分的各种半硬奶酪
V. Moga, M. Tița, O. Tița, A. Constantinescu
Migrating through a healthy diet is a must. Including in the daily diet as high a percentage of functional foods as possible must be a priority for the population. Za`atar is a mix of herbs rich in bioactive compounds that possess beneficial properties for the human body.(Khalil, și alții, 2022)The present study aims to diversify the assortment range of cheeses by obtaining a semi-hard cheese matured in za`atar. In this study, the sensory and physico-chemical effects of za`atar on semi-hard cheese during the ripening period, when za`atar is used as a coating for cheese pieces, were addressed. The ripening period of the semi-hard cheese was 40 days, and the analyses were performed on the first day, in the middle of the period, and on the last day, by comparison with a classic semi-hard cheese (without addition) produced under similar conditions. Very good results in terms of sensory analysis using a non-numerical method were obtained by cheese with za`atar coating, especially from the second part of the ripening process. Adding a coating of za`atar to the surface of the cheese does not change much the physicochemical parameters of the cheese.
健康饮食是迁移的必要条件。在日常饮食中尽可能多地摄入功能性食品必须成为人们的首要任务。Za`atar是一种混合草药,富含对人体有益的生物活性化合物(Khalil, și alții, 2022)。本研究旨在通过获得一种用za`atar成熟的半硬质奶酪来丰富奶酪的种类。在这项研究中,我们探讨了在半硬质奶酪的成熟期,用 za`atar 作为奶酪块的涂层时,za`atar 对半硬质奶酪的感官和物理化学影响。半硬质奶酪的成熟期为 40 天,分别在第一天、中期和最后一天进行分析,并与在类似条件下生产的传统半硬质奶酪(未添加)进行比较。使用非数字方法进行感官分析,添加了 Za`atar 涂层的奶酪获得了非常好的结果,尤其是在成熟过程的第二部分。在奶酪表面添加 za`atar 涂料并不会对奶酪的理化参数造成太大的改变。
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引用次数: 0
Influence of Ultrasound Parameters on Some Qualities of Frozen African Spinach 超声参数对冷冻非洲菠菜某些品质的影响
A. Fadeyibi, I.J. Gana, R.A. Ajiboye
Consumption of fresh and healthy vegetables in our diets aids protection from chronic diseases in humans. This study determined the effects of ultrasound as a pre-treatment technique on vitamin C, beta-carotene contents, and the weight loss of frozen African spinach (Amaranthus hybridus), and thereafter compared with the control. All the samples except the control were subjected to the ultrasound effects before freezing at frequency, time, and power ranges of 40-120 kHz, 10-30 min, and 50-150 W respectively. Result obtained indicated that the maximum vitamin C (99.5%) was obtained from the sample stored for 5 days under the treatment condition of 40 kHz, 50 W, and 20 min. However, the same sample retained more vitamin C within 5-20 days’ storage, while the pre-treated sample at 80 kHz, 100 W, and 10 min retained the maximum (80.9%) at 25 days of storage. The sample under the treatment condition of 80 kHz, 100 W, and 20 min lost more vitamin C (67.6, 66.6, and 59.2%) between 15-25 storage days. While for the beta-carotene, the sample with the treatment condition of 40 kHz, 50 W, and 20 min before freezing had the highest retention (99.8%) when stored for 5 days, and the same sample retained more at 10, and 15 days than others (97.6, and 92.4%). All pre-treated samples retained more beta-carotene at 25 days of storage when compared to the control with the least retention between 15-25 days. Furthermore, the least obtained content from the pre-treated samples was 64.9%, that is, a sample treated at 80 kHz, 100 W, and 20 min. The result revealed that Amaranthus hybridus was best preserved in pre-treated Amaranthus hybridus leaves. The optimum quality response occurs at 80kHz and 50 W for 30 min. This gives a vitamin C content of 31.1 mg/100g and a Betacarotene content of 10.5 mg/g at 0.694 desirability.
在饮食中摄入新鲜健康的蔬菜有助于预防人类慢性疾病。本研究确定了作为前处理技术的超声波对维生素 C、β-胡萝卜素含量和冷冻非洲菠菜(Amaranthus hybridus)重量损失的影响,并与对照组进行了比较。除对照组外,所有样品在冷冻前都受到了超声波的影响,频率、时间和功率范围分别为 40-120 kHz、10-30 分钟和 50-150 W。结果表明,在频率为 40 千赫、功率为 50 瓦、时间为 20 分钟的处理条件下,保存 5 天的样品中维生素 C 的含量最高(99.5%)。然而,同一样品在储存 5-20 天内保留了更多的维生素 C,而在 80 千赫、100 瓦和 10 分钟的预处理条件下储存 25 天的样品保留的维生素 C 最多(80.9%)。在 80 千赫、100 瓦和 20 分钟的处理条件下,样品在 15-25 天的储存期间损失了更多的维生素 C(67.6%、66.6% 和 59.2%)。而在β-胡萝卜素方面,冷冻前处理条件为 40 千赫、50 瓦和 20 分钟的样品在储存 5 天后的保留率最高(99.8%),同一样品在储存 10 天和 15 天后的保留率也高于其他样品(97.6%和 92.4%)。与对照组相比,所有预处理过的样品在储存 25 天后都能保留更多的胡萝卜素,而在 15-25 天之间保留最少。此外,经预处理的样品的β-胡萝卜素含量最低,为 64.9%,即在 80 kHz、100 W 和 20 分钟条件下处理的样品。结果表明,预处理过的杂交苋叶中杂交苋的保存效果最好。最佳质量反应出现在 80 千赫、50 瓦、30 分钟的条件下。维生素 C 含量为 31.1 毫克/100 克,胡萝卜素含量为 10.5 毫克/克,理想值为 0.694。
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引用次数: 0
Interconnection Between Ecosystem Services and Local Communities: Knowledge Gap Identification in the Area of Kakamega Forest 生态系统服务与当地社区之间的相互联系:卡卡梅加森林地区的知识差距识别
I. Osewe, E.O. Osewe, B. Popa
The potential for accelerate loss of ecosystem services exists when the livelihood of the rural poor is heavily reliant on local ecosystems. For an improvement in livelihood of the rural poor there is need for assessment of key elements of the livelihood framework. This is especially important to Kakamega forest, the last remaining tropical rainforest in Kenya. This paper is a comprehensive literature review aimed at identifyed the research gaps in the area of the relationships between local communities and Kakamega forest ecosystem services. We derived the 42 case studies using ROSES framework and used descriptive statistics to analysis the data set. 93% of the case studies analyse provisional ecosystem, 83% cultural, 55% regulating and 31% supporting ecosystem. We identified r research gaps in our interest area. Most used research methodology is the participatory rural methods which involved interviews, key informant interviews, and focus group discussion. The identified research gaps will enable us to develop tools that can be used to assess the livelihood improvement of local forest communities in Kakamega. The comprehensive review is also useful for planning the research in other parts of Kenya and beyond, in order to improve livelihoods of local forest communities.
当农村贫困人口的生计严重依赖当地生态系统时,生态系统服务就有可能加速流失。为改善农村贫困人口的生计,有必要对生计框架的关键要素进行评估。这对肯尼亚仅存的热带雨林卡卡梅加森林尤为重要。本文是一篇全面的文献综述,旨在确定当地社区与卡卡梅加森林生态系统服务之间关系领域的研究空白。我们使用 ROSES 框架得出了 42 个案例研究,并使用描述性统计对数据集进行了分析。93% 的案例研究分析了临时生态系统,83% 分析了文化生态系统,55% 分析了调节生态系统,31% 分析了支持生态系统。在我们感兴趣的领域中,我们发现了一些研究空白。使用最多的研究方法是农村参与式方法,包括访谈、关键信息提供者访谈和焦点小组讨论。所发现的研究空白将使我们能够开发出可用于评估卡卡梅加当地森林社区生计改善情况的工具。全面审查还有助于规划肯尼亚其他地区和其他地区的研究,以改善当地森林社区的生计。
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引用次数: 0
Variability of Pedunculate Oak (Quercus robur L.) Provenances in Central Ukraine 乌克兰中部截头橡树(Quercus robur L.)原产地的变异性
I. Neyko, M. Matusyak, O. Neyko, O. Tsyhanska
A total of 65 pedunculate oak (Quercus robur L.) provenances from the southern, central, northern, and eastern parts of the oak distribution range in Vinnytsia region (Central Ukraine) were assessed in a common garden experiment. Analysis of the population’s survival dynamics indicates an increase with age in the adaptive capacity of the provenances to the environmental conditions. In the initial stage, up to 10 years, the survival rate of the local populations was about 75%, by 40 years the survival decreased to 15%. At the same time, the number of trees of other provenances, which were characterised by higher survival rate, increased. The best adaptive capacity was obtained for the Rivne (Ostrozke), Kirovohrad (Svitlovodske), Chuvash (Kanaske), and Ulyanovsk (Melekske) provenances. The indicators of average height of the trees and geographic longitude (r=-0.513) and latitude of the natural growth of the populations (r=-0.474) are characterised by a significant and moderately close relationship. Oak populations differ by average diameter and remoteness from the natural location ratio (r=-0.431), and by the geographic latitude of their growing place (r=-0.478) in a moderate correlation. According to the comprehensive assessment of the non-local populations, which included survival rate, mean diameter and height, and tree breeding category, we can conclude that in general, the central populations have optimal values. Populations of Bryansk, Khmelnytskyi, Zaporizhzhya, and Cherkassy origin, as well as the local ones, have the highest values. The lowest indicators were observed manly for the northern oak populations.
在一个普通花园实验中,对来自文尼察地区(乌克兰中部)栎树分布范围南部、中部、北部和东部的 65 个有梗栎树(Quercus robur L.)产地进行了评估。对种群生存动态的分析表明,随着年龄的增长,产地对环境条件的适应能力也在增强。在最初阶段,10 年内当地种群的存活率约为 75%,40 年后存活率降至 15%。与此同时,成活率较高的其他产地的树木数量有所增加。适应能力最强的是罗夫诺(Ostrozke)、基洛沃格勒(Svitlovodske)、楚瓦什(Kanaske)和乌里扬诺夫斯克(Melekske)产地。树木的平均高度指标与种群自然生长的地理经度(r=-0.513)和纬度(r=-0.474)有显著的中度密切关系。栎树种群的平均直径和远离自然地点的比例(r=-0.431)和生长地的地理纬度(r=-0.478)不同,相关性中等。根据对非本地种群的综合评估(包括存活率、平均直径和高度以及树木繁殖类别),我们可以得出结论:总体而言,中部种群具有最佳值。布良斯克、赫梅利尼茨基、扎波罗热和切尔卡瑟的种群以及当地种群的数值最高。北部橡树种群的指标最低。
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引用次数: 0
Low-Waste Technology of Fodder Grass Processing 低废料饲料草加工技术
Valeria V. Kireeva
The article describes the peculiar features of plant processing for the conservation of fodder made of the leafy mass of hard-to-ensilage legume family cultures in agricultural complexes and deficiencies of the traditional treatment of the feedstock. The current technology of mechanical fractionation of legume grasses suggests the production of the basic product - the protein concentrate. The by-products are press residues - grass pulp and protein-free liquid, which are production wastes. The purpose of this work was to develop a comprehensive method of plant resources' use with waste disposal and application in fodder production. The novelty of the work is the method of combining the dehydration of the vegetative organs of the hard-to-ensilage sown legume fodder grasses through mechanical pressing and drying and the use of the resulting wastes - the press residues as raw material for fodder preparation. The humidity of the press residues was to be reduced to the level required for making haylage by using the method of low-temperature final drying in an experimental unit - a continuous-action direct heated drier. The results of studying the possibility of reducing the humidity of the press residues by low-temperature direct-heated drying and using it as raw material for haylage are presented in the article. The temperature and time ranges for the material drying in a direct-heated drier were established. The chemical composition of the vegetable stock and resulting haylage was analyzed, and the composition of the fermentation products, the feed, and caloric values, and the potential safety for animal organisms were determined. The suggested method ensures the comprehensive processing of the herbage with waste disposal and the production of high-quality animal fodder. In terms of quality parameters and environmental safety, the obtained fodder conformed to the regulatory requirements for the haylage to be used in the cattle stock diet.
文章介绍了在农业综合体中利用难以贮藏的豆科植物叶块加工饲料的特殊性,以及传统饲料处理方法的不足之处。目前的豆科牧草机械分馏技术建议生产基本产品--浓缩蛋白质。副产品是压榨残留物--草浆和不含蛋白质的液体,属于生产废料。这项工作的目的是开发一种综合利用植物资源、废物处理和饲料生产应用的方法。这项工作的新颖之处在于,通过机械压榨和干燥,将难以播种的豆科饲料草的无性器官脱水与由此产生的废物--压榨残渣--作为饲料制备的原料相结合。压榨残渣的湿度要降低到制作干草所需的水平,方法是在实验装置--连续作用直接加热干燥器--中使用低温最终干燥法。文章介绍了通过低温直接加热干燥降低压榨残渣湿度并将其用作干草原料的可能性研究结果。文章确定了在直接加热干燥器中干燥材料的温度和时间范围。分析了蔬菜汁和所得干草的化学成分,确定了发酵产物的成分、饲料和热量值,以及对动物机体的潜在安全性。所建议的方法确保了草料的综合处理和废物处理,并生产出高质量的动物饲料。就质量参数和环境安全性而言,获得的饲料符合牛群日粮中使用干草的法规要求。
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引用次数: 0
Wood Colouring with Natural Dye Extracts. New Research and Perspectives 天然染料提取物的木材着色。新研究与新视角
E. Beldean, M.C. Timar
The aims of the present research were to test new types of natural dye extracts for wood as a possible alternative to synthetic dyes and to evaluate the colour changes after a period of one year of exposure to natural light, in indoor conditions. Three types of extracts using raw materials: nutshell from Juglans regia L. (E1), onion peels (E2), and dry plant of Chelidonium majus L. (E3) were employed. Spruce wood (Picea abies L. Karst) samples with dimensions of (120x80x5) mm were used. The dye aqueous solutions with a concentration of 5% (E1, E3) and 2.5% (E2) were obtained by solid-liquid extraction at 100°C for three hours. The extracts E1, E2, E3 were modified by the addition of mordant ferrous sulphate Fe2(SO4)3 3% and coded EM1, EM2, EM3 respectively. The wood was coloured by dipping procedure at 60° C for 30 min. Three replicates were employed for each type of dye solution. After conditioning, two replicates together with the uncoloured samples (M) were further exposed indoors, and one coloured sample remained unexposed, as a control. Colour measurements in the CIELab system were performed before and after each period of exposure (30, 60, and 365 days), and the colour differences ΔL, Δa, Δb, and ΔE were calculated. Generally, all the samples dyed with natural extracts had fewer colour differences compared with the uncoloured wood. The lower value for colour change was registered for the E2 extract, followed by the E3, and E1 extract, respectively. According to the exposure time, the colour differences values ΔE range correspond to a medium colour up to different colours in visual perception. For mordant dye extracts EM1, EM2, and EM3 the results indicated a different colour in visual perception. The ΔE values registered were even higher than the uncoloured samples (M). The results were in accordance with similar research in the field. The present study opens new research opportunities in wood finishing and new colouring perspectives with eco-friendly dyes.
本研究的目的是测试新型木材天然染料提取物,作为合成染料的可能替代品,并评估在室内自然光下暴露一年后的颜色变化。研究人员使用了三种提取物原料:胡桃果壳(E1)、洋葱皮(E2)和干茜草(E3)。云杉(Picea abies L. Karst)样品的尺寸为(120x80x5)毫米。通过固液萃取法在 100°C 下萃取三小时,得到浓度为 5%(E1、E3)和 2.5%(E2)的染料水溶液。提取物 E1、E2、E3 通过添加媒染剂硫酸亚铁 Fe2(SO4)3 3% 进行改良,分别命名为 EM1、EM2、EM3。木材通过在 60° C 温度下浸渍 30 分钟而着色。每种染料溶液使用三个重复。调节后,两个重复样品和未着色样品(M)在室内继续暴露,一个着色样品作为对照,保持未暴露状态。在每个暴露期(30 天、60 天和 365 天)前后,用 CIELab 系统进行颜色测量,并计算色差 ΔL、Δa、Δb 和 ΔE。一般来说,与未着色的木材相比,用天然提取物染色的所有样本的色差都较小。E2 提取物的颜色变化值较低,其次分别是 E3 和 E1 提取物。根据暴露时间的不同,色差值 ΔE 的范围从中等颜色到视觉感知的不同颜色。对于媒染萃取物 EM1、EM2 和 EM3,结果表明在视觉感知上呈现出不同的颜色。所记录的 ΔE 值甚至高于未着色的样品 (M)。这些结果与该领域的类似研究相符。本研究为木材涂饰和使用环保染料着色开辟了新的研究领域。
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引用次数: 0
Identifying New Tourist Destinations in Balikpapan's Protected Forest: a Solution to Prolonged Social Conflicts 在巴厘巴板森林保护区确定新的旅游目的地:解决长期社会冲突的办法
A.W. Nugroho, L.R. Yusuf, T.R. Yusnikusumah, S.Y. Indriyanti, S. Suhartono, N. Muin, R. Fauzi, B.K. Sumirat
Optimizing tourism potential in the Balikpapan Protected Forest (BPF) is one of the efforts that the Balikpapan government can make to reduce the long-standing social conflict in the area. However, these measures must be implemented wisely to ensure that biodiversity and natural ecosystems in BPF remain protected. This study aims to identify the location of the BPF area to be proposed as a potential location for a new tourist destination. Data collection was carried out through observation, indepth interviews, and focus group discussions. The data analysis used in this research is descriptive analysis, which is carried out by describing tourist destinations based on the 6A tourism principles (attractions, accessibility, amenities, additional services, available packages, and activities). The results show that there are 11 potential new tourist destinations in the BPF area. Most of it is agrotourism that uses social forestry land. Prospective new tourist destinations have specific activities, are easy to reach, and provide accommodation, amenities, and additional services. The addition of new tourist destinations in the BPF area can attract more visitors and increase sales of agricultural products. The government's agrotourism management plan in tourist forest areas has the potential to minimize social conflict, improve the regional economy, and provide a vehicle for environmental education for the community.
优化巴厘巴板保护森林(BPF)的旅游潜力是巴厘巴板政府为减少该地区长期存在的社会冲突所做的努力之一。但是,必须明智地实施这些措施,以确保巴厘巴板保护林的生物多样性和自然生态系统继续受到保护。本研究旨在确定拟作为新旅游目的地的 BPF 地区的位置。数据收集通过观察、深入访谈和焦点小组讨论进行。本研究采用的数据分析方法是描述性分析,即根据 6A 旅游原则(景点、可进入性、便利设施、附加服务、可用套餐和活动)对旅游目的地进行描述。结果显示,在 BPF 地区有 11 个潜在的新旅游目的地。其中大部分是利用社会林地的农业旅游。潜在的新旅游目的地有特定的活动,交通便利,提供住宿、便利设施和附加服务。在 BPF 地区增加新的旅游目的地可以吸引更多游客,增加农产品的销售。政府在旅游林区的农业旅游管理计划有可能最大限度地减少社会冲突,改善地区经济,并为社区提供环境教育的载体。
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引用次数: 0
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Bulletin of the Transilvania University of Brasov. Series II: Forestry • Wood Industry • Agricultural Food Engineering
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