Tarihin başlangıcından beri insanların yaşamlarını sürdürebilmeleri için en temel gereksinimleri gıda ürünleri (yiyecek-içecek) olmuştur. Artan insan nüfusu ile gıda ürünlerine olan ihtiyaç da artmış ve gelişen teknolojiyle birlikte, gıda sektöründe gerçekleştirilen seri üretimlerle bu ihtiyaçlar karşılanmaya çalışılmıştır. Ancak küreselleşmenin de etkisiyle artan kitlesel gıda ürünlerinin güvenliği sorunu ortaya çıkmış ve bu da toplumları gıda güvenliği ve izlenebilirliği politikaları ve izlenebilirlik sistemleri oluşturmaya yönlendirmiştir. Bu derlemede 18. yy’da buharlı makinelerin kullanımıyla ortaya çıkan 1. Endüstri Devrimi ile başlayıp günümüzde endüstriyel süreçlerde makinelerin insan gücüne göre etkin bir rol almaya başladığı 4. Endüstri Devrimi (Endüstri 4.0) dahil olmak üzere endüstriyel devrim aşamaları ele alınmış ve bunların gıda sektöründeki etkileri incelenmiştir. Endüstri 4.0’ün temel prensipleri ve uygulamalarının gıdada izlenebilirlikte kullanımı ile ilgili çalışmalar araştırılarak tartışılmıştır.

The present study aims to evaluate the energy production potential from walnut (Juglans regia L.) residues, specifically pruning waste and shell biomass, in Kırşehir province, Türkiye. Data collected between 2019 and 2023 were analyzed to quantify the biomass availability and its corresponding energy potential across various districts in the region. The findings reveal that total biomass production from pruning residues increased from 1220.36 t in 2019 to 1322.69 t in 2023, resulting in an energy potential growth from 19,904.02 GJ to 21,573.11 GJ. A similar trend was observed in shell biomass, which rose from 483.11 t to 523.62 t, resulting in an energy potential increase from 9164.60 GJ to 9933.12 GJ. The Kaman district consistently dominated, accounting for over 55% of the total energy potential, while Boztepe and Çiçekdağı exhibited the lowest contributions. The total energy production potential from walnut residues in 2023 was estimated at 31,506.22 GJ (31.51 TJ), corresponding to an annual electricity generation capacity of approximately 8751.74 MWh. The study emphasizes the higher energy potential of pruning residues compared to shell biomass and highlights regional disparities in biomass availability, underscoring the need for targeted strategies to optimize resource utilization. The findings indicate that the utilization of walnut residues for bioenergy purposes has the potential to substantially mitigate fossil fuel dependency and to promote sustainable energy development in the region.

Bu araştırmada ‘Fuyu’ çeşidi meyvelerine, hasattan 14 ve 21 gün önce farklı dozlarda (0, 75, 150 ve 225 mg l-1) AVG (Aminoetoksivinilglisin) uygulamalarının depolama süresince meyve kalitesine etkileri incelenmiştir. AVG uygulaması yapılan meyveler modifiye atmosferli poşetler ile ambalajlanarak 0-1oC sıcaklık ve %85-90 oransal nemde 4 ay süreyle depolanmıştır. Araştırmada ağırlık kaybı, toplam suda çözünür kuru madde miktarı, titre edilebilir asit miktarı, meyve eti sertliği, askorbik asit miktarı, toplam fenolik madde miktarı, toplam antioksidan madde miktarı, solunum hızı ve üşüme zarar oranları incelenmiştir. Çalışmada depolama süresince meyve eti sertliği azalırken, meyvelerin ağırlık kayıplarında artışlar belirlenmiştir. AVG uygulamalarının meyve olgunlaşması üzerine olan geciktirici etkisine paralel olarak üşüme zararı oluşumu da gecikmiştir. Solumun hızı ve biyokimyasal bileşiklerin kaybı üzerine artan dozları ile AVG’nin engelleyici etkisi belirgin bir şekilde ortaya çıkmıştır. Sonuç olarak, ticari hasattan önce uygulanan 150 ve 225 mg l-1 AVG uygulamasının, hasat sonrası depolama döneminde meyve kalitesi açısından Fuyu’ çeşidi Trabzon hurması üzerinde önemli ve olumlu bir etkisi olmuştur.

The whitefly, Bemisia tabaci, damages various crops by releasing honeydew and spreading. Although farmers and pest control experts primarily rely on insecticides to manage whiteflies, the notable issue is their tendency to develop resistance to major insecticide categories, posing a significant challenge. This result has led to the improvement of new drugs or insecticide mixtures. In addition, some plant-based studies have been conducted to control whiteflies, and RNA interference (RNAi) technology has been used in recent years. This study aimed to identify the relationships between tobacco, cotton, tomato, and linen miRNAs and odorant-binding protein (OBP) and chemosensory protein (CSP) genes in whiteflies by using in silico approaches. We determined that 115 miRNAs belonging to these plants targeted 13 CSP and 8 OBP genes of B. tabaci. Obtaining findings are important to reduce dependency on chemicals and pesticides in pest management.

In this research, the usability of spent mushroom compost/substrate (SMC/SMS) as casing material was investigated. For this purpose, different volumes of peat and spent mushroom substrate (peat, peat + SMS (1/1), peat + SMS (1/2), peat + SMS (2/1), SMS) were used as casing material. The effects of spent mushroom substrate waste used as casing material and different volumes of peat applications on cap length, cap diameter, stipe length, stipe diameter, hardness, number of mushrooms, average mushroom weight, yield of cultivated mushrooms were determined. Different casing material applications affected stipe length, hardness, number of mushrooms, average mushroom weight and yield. Although the highest yield was obtained from peat application (59.86 kg 100 kg-1 compost), it has been shown that spent mushroom substrate waste can be used in casing material mixtures in mushroom cultivation.

The present study aimed to determine the variation in calcium (Ca), magnesium (Mg), and potassium (K), which are crucial macronutrients for plants, in soil and plant organs at a copper mining site. In the study, the soil was sampled from various soil depths in the spoil field, the rehabilitation site in which planting was carried out and adult trees were present, and the forest area. Furthermore, bark, leaf, root, and wood samples were taken from black pine (Pinus nigra Arnold.), scots (Pinus silvestris L.), and black locust (Robinia pseudoacacia L.) species growing in the rehabilitation and forest areas. The work determined general variation in the concentrations of elements in soils and organs according to the plant species, and variation in element concentrations depending on the soil depth was statistically significant only in Ca. However, the determined element concentrations were quite high. In line with the average values, the variation in Mg in plants was not statistically significant, while the highest Ca and K concentrations were obtained from Robinia pseudoacacia species.

In this study, the freshness levels of boiled chicken eggs were determined using an electronic nose and machine learning techniques. Eggs were boiled and stored under refrigerator conditions (3±1ºC) from day 0 to day 6. Each storage day, eggs were divided into two groups based on cooling methods: quick-cooled and fast-cooled. Sensor readings were taken using an electronic nose, and image changes from 110 daily image files were processed with a machine learning program. With 85% of the image data used for training and 15% for testing, a classification accuracy of over 98% was achieved. The results showed that egg white solidified in more than 4 minutes and yolk solidified in 11 minutes. Fast-cooled eggs exhibited significantly lower odor levels, indicating superior freshness. This study demonstrates the effectiveness of electronic nose and machine learning systems in accurately determining the freshness of boiled eggs.

This study aimed to determine the tachinid parasitoids (Diptera: Tachinidae) associated with different hemipteran hosts in Bolu and Düzce provinces in the Western Black Sea region of Türkiye in the period from 2022 to 2024. For this purpose, samples of Hemiptera were collected from various weeds, shrubs and cultivated plants. These specimens were brought to the laboratory and cultivated on the corresponding host plant material at 25 ± 2 °C and 60-70% RH. In this study, three different parasitoid species of tachinids were identified on three different hemipteran hosts. Of these, Graphosoma lineatum Linnaeus (Hemiptera: Pentatomidae) is a new host record for Ectophasia crassipennis (Fabricius, 1794) and Gymnosoma clavata (Rohdendorf, 1947) (Diptera: Tachinidae) from Türkiye. In addition, information on the hosts of the parasitoids parasitoids in Türkiye is presented.

Different mechanization practices are included in the drying process, which is among the methods (ensiling, drying, storing at high moisture level, etc.) used in the preservation of roughage, which has an important place in the nutrition of ruminant animals. Haymaking processes are applied by natural (at the field) or artificial drying methods (in warehouses and special dryers). During drying, the hay may be loose or loosely baled. The machines that can be used in various stages of haymaking from harvesting forage to filling the warehouse can be listed as strimmers, crushers, windrow harvesters, hay rakes, loose forage harvesters, balers, bale collecting and transporting machines. These mechanization practices have positive and negative aspects relative to each other. In other words, these mechanization practices affect hay quality at different levels. In this study, different mechanization practices applied in hay drying and the effects of these mechanization practices on hay quality were emphasized.

The study aimed to calculate the percent transfer of lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn) from milk into cream, skim milk, butter, buttermilk, soft cheese, and whey manufactured in the laboratory. The four heavy metals were determined using the ICP method. The results revealed that the percentage of these metals transferred to milk products varied from 9.48 to 72.63%, with skim milk exhibiting the highest transfer rate (67 to 72.63%) and butter displaying the lowest transfer rate (9.48 to 13.94%). These findings are expected to urge the artisanal dairy industry to decide on the best way to process milk that does not comply with the maximum permissible levels of Pb, Cd, Cu, and Zn into a safe product for the consumer.