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Comparing disaggregation approaches DSMART and PPD in disaggregating soil series maps

Pedosphere 2025年第2期35卷 387-404页

作者： Tahmid Huq EASHER Daniel SAURETTE Brandon HEUNG Adam GILLESPIE Richard J.HECK Asim BISWAS School of Environmental Sciences University of Guelph Department of Plant Food and Environmental Sciences Faculty of Agriculture Dalhousie University

Conventional soil maps(CSMs) often have multiple soil types within a single polygon, which hinders the ability of machine learning to accurately predict soils. Soil disaggregation approaches are commonly used to improve the spatial and attribute precision of CSMs. The approach disaggregation and harmonization of soil map units through resampled classification trees(DSMART) is popular but computationally intensive, as it generates and assigns synthetic samples to soil series based on the areal coverage information of CSMs. Alternatively, the disaggregation approach pure polygon disaggregation(PPD) assigns soil series based solely on the proportions of soil series in pure polygons in CSMs. This study compared these two disaggregation approaches by applying them to a CSM of Middlesex County, Ontario, Canada. Four different sampling methods were used: two sampling designs, simple random sampling(SRS) and conditional Latin hypercube sampling(cLHS), with two sample sizes(83 100 and 19 420 samples per sampling plan), both based on an area-weighted approach. Two machine learning algorithms(MLAs), C5.0 decision tree(C5.0) and random forest(RF), were applied to the disaggregation approaches to compare the disaggregation accuracy. The accuracy assessment utilized a set of 500 validation points obtained from the Middlesex County soil survey report. The MLA C5.0(Kappa index = 0.58–0.63) showed better performance than RF(Kappa index = 0.53–0.54) based on the larger sample size,and PPD with C5.0 based on the larger sample size was the best-performing(Kappa index = 0.63) approach. Based on the smaller sample size, both cLHS(Kappa index = 0.41–0.48) and SRS(Kappa index = 0.40–0.47) produced similar accuracy results. The disaggregation approach PPD exhibited lower processing capacity and time demands(1.62–5.93 h) while yielding maps with lower uncertainty as compared to DSMART(2.75–194.2 h). For CSMs predominantly composed of pure polygons, utilizing PPD for soil series disaggregatio

关键词： conditioned Latin hypercube sampling conventional soil map machine learning algorithm processing capacity and time sample size simple random sampling soil map unit soil series disaggregation

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Volatile flavor analysis of flesh oil and liver oil from Doederleinia berycoides based on HS-GC-IMS,HS-SPME-GC-MS and lipidomics

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Grain & Oil Science and technology 2025年第1期8卷 1-12页

作者： Feifan Wu Kewei Lin Jixiang Zhang Xinyang Li Xiaoguo Ying Shanggui Deng Alessandra Guidi Gengsheng Xiao Feng Wang Lukai Ma food Science and Pharmacy Zhejiang Ocean UniversityZhoushan 316022China College of Light Industry and food Zhongkai University of Agriculture and Engineering/Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty FoodMinistry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and TechnologyGuangzhouChina Department of agriculture Food and Environment(DAFE)Pisa UniversityVia Del Borghetto8056124PisaItaly

Edible oils derived from aquatic products are rich in lipids beneficial to human ***,the volatile flavor characteristics of flesh oil and liver oil from Doederleinia berycoides remain *** this study,flesh oil and liver oil were extracted from Doederleinia berycoides,revealing different fatty acid compositions and *** analysis identified a total of 124 differential lipids between the flesh oil and liver oil,including 42 glycerophospholipids(GPs),33 glycerolipids(GLs),23 free fatty acids(FAs),13 sphingolipids(SPs),10 sterols(STs),and 3 prenol lipids(PRs).Analysis using HS-GC-IMS identified 12 key volatile compounds that significantly contributed to the distinct volatile flavors of the flesh and liver *** volatile flavors originated from these volatile compounds,which had different Relative Odor Activity Values(ROAVs).Further results from HSSPME-GC-MS showed that the volatile flavors of the flesh oil and liver oil were respectively attributed to 64 and 35 volatile compounds,each with unique key volatile compounds exhibiting different *** were significant positive or negative correlations between 18 key differential lipids and 24 volatile compounds in both flesh oil and liver ***,the complex lipid profiles are responsible for the unique volatile flavors of flesh oil and liver oil,and the differential lipids play a central role in their volatile flavor *** findings provide a foundation for understanding the volatile flavor differences in fish oils and hold promise for further exploration of the molecular mechanisms underlying oil volatile flavors.

关键词： Flesh oil Liver oil Lipids Volatile compounds Volatile flavors

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Salt reduction in cured meat products:a review on strategies and mechanisms

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food Science and Human Wellness 2025年第3期14卷 864-879页

作者： Qi Chen Jinxuan Cao Wenhai She Weidong Bai Xiaofang Zeng Hao Dong Guangdong Provincial Key Laboratory of Lingnan Specialty food Science and technology Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty FoodMinistry of Agriculture and Rural AffairsCollege of Light Industry and Food SciencesAcademy of Contemporary Agricultural Engineering InnovationsZhongkai University of Agriculture and EngineeringGuangzhou 510225China School of food and Health Beijing Technology and Business UniversityBeijing 100048China Guangzhou Luxu food Ltd. Guangzhou 510820China

Sodium chloride is one of the most widely used additives in meat ***,cured meat products contribute to a portion of the total sodium dietary *** and researchers'concern about excessive sodium intake has prompted the food industry to consider ways to reduce salt content of cured meat *** aim of this review is to provide a broad but comprehensive understanding of salt reduction strategies for cured meat *** implications and limitations of each approach were *** technologies treatments,such as ultrasonic technology,high-pressure processing,seem to be potential to ensure microbiological safety in low-sodium cured meat ***,these novel technologies can cause protein and fat oxidization in meat products.A combination of multiple treatments could give the desired *** addition,different parameter conditions need to be set according to the specific meat to achieve better salt reduction effect.

关键词： Salt reduction Cured meat products Ultrasonic technology Salt substitutes High-pressure processing

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Impacts of changes in peat soils due to agricultural activities on greenhouse gas(especially N_(2)O)emissions and their mitigations

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Pedosphere 2025年第1期35卷 8-11页

作者： Ryusuke HATANO Research faculty of agriculture Hokkaido UniversitySapporo 0608589Japan

Natural peatlands are a source of CH_(4) emission but a sink of CO_(2) and N_(2)*** the other hand,peatlands drained for agricultural use suppress CH_(4) emission but become a source of CO_(2) and N_(2)O *** peatland area accounts for 2% of the world's agricultural land,but its greenhouse gas(GHG)emissions account for 7%of global GHG *** after land clearing,N_(2)O emission significantly increases due to nitrogen(N)fertilization.

关键词： greenhouse agricultural emissions

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Comparative metabolomics reveal histamine biodegradation mechanism by salt stressed Bacillus subtilis JZXJ-7

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food Science and Human Wellness 2025年第3期14卷 925-940页

作者： Rundong Wang Yijia Deng Yuhao Zhang Xuepeng Li Ravi Gooneratne Jianrong Li College of food Science and Engineering Lingnan Normal UniversityZhanjiang 524048China College of food Science Southwest UniversityChongqing 400715China College of food Science and Engineering Bohai UniversityJinzhou 121013China Chongqing Key Laboratory of Speciality food Co-built by Sichuan and Chongqing Chongqing 400715China Department of Wine Food and Molecular BiosciencesFaculty of Agriculture and Life SciencesLincoln UniversityChristchurch 7647New Zealand

Bacillus subtilis JZXJ-7 isolated from shrimp paste can significantly degrade histamine under salt stress but the mechanism is *** study aims to evaluate the effect of 170 and 340 mmol/L Na Cl on *** JZXJ-7 growth,histamine degradation,antioxidant enzymes(catalase(CAT),superoxide dismutase(SOD)and glutathione S-transferase(GST))activities and Na^(+)/K^(+)-ATPase ***,comparative metabolomics was used to investigate histamine biodegradation mechanism by *** JZXJ-7 subjected to salt *** 170 and 340 mmol/L Na Cl promoted *** JZXJ-7 growth in late stages of reproduction(32-48 h),increased h istamine degradation rate by 64.85%and 79.87%(Pfood fermentation industry.

关键词： Bacillus subtilis JZXJ-7 Histamine Salt stress Antioxidant enzymes Metabolomics

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Collagen-reinforced polystyrene/polycaprolactone membranes with nickel oxide nanoparticles:Enhanced mechanical,thermal,and antibacterial properties for antibacterial applications

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Particuology 2025年第1期96卷 193-202页

作者： Tingting Ren Zhangjing Ye Haoran Li Qiqi Cui Hongxia Zhang Seyedeh Maryam Banihashemian Zhijun Guo College of food Science and Engineering Yanbian UniversityYanbian133002China College of food Science and Engineering Dalian Ocean UniversityDalian116023China Department of food Nanotechnology Research Institute of Food Science and Technology(RIFST)PO Box:91895-157-356MashhadIran Particle and Interfacial technology Group(PaInT) Department of Green Chemistry and TechnologyFaculty of Bioscience EngineeringGhent UniversityGent9000Belgium Key Laboratory of Natural Medicines of the Changbai Mountain Ministry of EducationYanbian UniversityYanji133002China MEMS&NEMS Laboratory Faculty of New Science and TechnologiesUniversity of TehranTehranIran

Electrospinning technology was employed to fabricate a novel composite membrane integrating collagen from Peruvian squid skin with polystyrene (PS), polycaprolactone (PCL), and green-synthesized nickel oxide (NiO) nanoparticles (PS/PCL/CO/NiO). The addition of collagen (CO) and NiO nanoparticles significantly enhanced the membrane's hydrophobicity, as evidenced by an increase in the water contact angle from 124.8 ± 0.6° to 131.2 ± 1.2°. Mechanical properties showed substantial improvement, with tensile strength increasing by 86% (from 5.05 ± 1.6 MPa to 9.39 ± 1.4 MPa) and elongation at break improving by 48% compared to conventional NiO membranes. Thermal analysis indicated increased stability, with a higher endothermic peak and an enthalpy increase from 6.885 J/g to 8.584 J/g. Antibacterial assays revealed strong efficacy against Escherichia coli and Staphylococcus aureus, reducing bacterial growth by over 90%. The enhanced hydrophobicity, mechanical strength, thermal stability, and antibacterial activity of PS/PCL/CO/NiO membranes make them highly promising for applications in tissue engineering, wound dressings, and water treatment.

关键词： Electrospun fibers membranes Squid skin Collagen NiO nanoparticle Escherichia coli Staphylococcus aureus

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Biochar,Properties and Skills with a Focus on Implications for Vineyard Land and Grapevine Performance

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Phyton-International Journal of Experimental Botany 2025年第1期94卷 33-64页

作者： Pamela Lippi Giovan Battista Mattii Eleonora Cataldo Department of agriculture FoodEnvironment and Forestry(DAGRI)University of FlorenceSesto Fiorentino50019Italy

Biochar has emerged as a promising tool for enhancing vineyard sustainability by improving soil properties and mitigating climate change *** review highlights key findings on biochar’s role in viticulture,focusing on its effects on soil fertility,water retention,and plant *** and pot studies demonstrate that biochar amendments enhance soil structure,increase cation exchange capacity(CEC),and promote water availability,leading to improved drought resistance in ***,the impacts on grape yield,physiology,and quality remain inconclusive,with some studies reporting benefits while others show neutral *** research should focus on optimizing biochar application rates,understanding its interactions with soil microbiota,and assessing long-term impacts on grape production and wine ***,addressing potential risks,such as heavy metal contamination and changes in microbial communities,is crucial for its safe and effective *** review aims to supply a comprehensive assessment of our knowledge about the incidence and consequences of biochar on soil,including its potential use in soil remediation and concerns regarding its possible negative impacts,with a focus on its effects on vine physiology and grape production.

关键词： C sequestration charcoal climate change pyrolysis soil amendment soil remediation

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Functional genomics dissection of the nodulation autoregulation pathway(AON) in soybean(Glycine max)

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Journal of Integrative Plant Biology 2025年第3期67卷 762-772页

作者： Peter M.Gresshoff Chao Su Huanan Su April Hastwell Yanyan Cha Mengbai Zhang Estelle B.Grundy Xitong Chu Brett J.Ferguson Xia Li Integrative Legume Research Group School of Agriculture and Food Sustainability The University of Queensland National Key Laboratory of Crop Genetic Improvement College of Plant Science and Technology Huazhong Agricultural UniversityHongshan Laboratory

The combination of mutation-based genetics and functional genomics has allowed a detailed dissection of the nodulation-induction and autoregulation of nodulation(AON) pathways of soybean. Applicable to all legumes, nodulation is induced by Rhizobium/Bradyrhizobium-produced lipopolysaccharides(Nod factors), perceived by Nod factor receptors(NFR1/NFR5 dimers), leading to cortical and pericycle cell divisions. These induce the production of CLAVATA3-like(CLE) peptides, which travel in the xylem to the shoot, where they are perceived by a receptor complex including a leucine-rich repeat(LRR) receptor kinase, encoded by Gm NARK, Lj HAR1, Mt SUNN and closely related receptors in other legumes like Phaseolus vulgaris(common bean), Pisum sativum(pea), and Glycine soja. The activated receptor complex negatively regulates by phosphorylation of the constitutive synthesis of mi R2111 in the shoot. This is normally is translocated via the phloem to the entire plant body, initiating suppression of a rootexpressed Kelch repeat-containing F-box protein“Too Much Love(TML),” which in turn suppresses the nodule initiation cascade. Nodulation is therefore permitted during a developmental window between the induction and progress of the nodulation/cell division/infection cascade during the first few days after inoculation and the functional“readiness” of the AON cascade, delayed by the root–shoot–root loop. Loss-of-function mutations in Gm NARK and Lj TML result in excessive nodulation(supernodulation/hypernodulation/supernummary nodulation) as well as localized tolerance to externally applied nitrate. Recent analyses have indicated an interaction of the AON with lateral root formation as well as with the autoregulation of mycorrhization(AOM). Further details of the parallel functions of key points in this regulatory loop remain to be elucidated.

关键词： autoregulation of nodulation legumes soybean symbiotic nodulation

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Ribosome-associated quality control underlies rice thermo-sensitive genic male sterility

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Molecular Plant 2025年第2期18卷 183-185页

作者： Takahiko Kubo Plant Genetics Laboratory Faculty of AgricultureKyushu UniversityFukuokaJapan

The twin challenges of an expanding world population and environmental crises make securing a stable food supply by increasing crop yields and improving stress tolerance a major global *** varieties,developed and used in a wide range of crops in recent years,are produced,in many cases,by crossing local inbred *** hybrids are increasingly in demand because of their potential for robust yield and stress tolerance *** the past half century,great efforts have been made in both basic and applied science to develop hybrid varieties of rice(Oryza sativa),with the first practical application beginning in China around *** rice varieties can be expected to increase yields by around 20%compared to conventional inbred lines due to the heterosis effect.

关键词： sativa) crops effect.

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Unraveling the link between lipid oxidation and off-flavor development in grass carp fillets(Ctenopharyngodon idellus) during cold storage: A non-targeted lipidomics approach

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food Science and Human Wellness 2025年

作者： Huifang Yang Ramy M.Khoder Shanbai Xiong Juan You Yueqi An Key Laboratory of Environment Correlative Dietology， Ministry of Education， College of food Science and technology， Huazhong Agricultural University faculty of agriculture， Benha University College of Health Science and Engineering， Hubei University

Grass carp fillets were susceptible to unpleasant fishiness during cold storage. To clarify the mechanism of fishy odor formation and achieve targeted regulation， volatile compounds， and lipid oxidation were investigated in grass carp fillets during cold storage （0-7d）. The lipid oxidation degree increased continually during cold storage， as evidenced by the change of AV， POV， TBARS， and HP. The activities of related enzymes (LOX， LPS， PLA[2]， and HPL) maintained a high level， reaching their maximums after 3-5 days. Free fatty acids exhibited a great downtrend， especially linoleic acid （18:2） and arachidonic acid （20:4）. Forty-five volatile compounds were identified by solvent-assisted flavor evaporation-gas chromatography-mass spectrometer， and the total contents of volatile compounds increased from 706.55 μg/kg （0d） to 1370.65 μg/kg （7d）. （Z）-4-heptenal，（E，E）-2，4-hexadienal， 1-penten-3-ol， nonanal， and （E）-2-heptenal were the key volatile compounds. The Pearson correlation showed a strong correlation between 47 differentially abundant lipids （variables important in projection > 1， P value 2） and volatile compounds. During cold storage， lyso-phosphatidylcholine （20:4） and lyso-phosphatidylcholine （18:2） were selected as the main precursors of volatile compounds’ formation in grass carp fillets.

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