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1. Comparison of the quality of soybean meal and oil by soybean production origin

   https://doi.org/10.1002/aocs.12835  

   Liu, Huazhen; Gishini, Mohammad_Fazel Soltani; Pope, Micah; Doehring, Todd; Kachroo, Pradeep; Hildebrand, David (September 2024, Journal of the American Oil Chemists' Society)

   Abstract Previous reports indicate variable soybean quality parameters exported from different geographic regions. This review compares soybean and soybean co‐products grown under diverse environmental conditions. While numerous studies have been conducted on whole soybean and soybean meal (SBM) composition by origin, similar analysis of soybean oil is lacking. This review has two objectives: 1) summarize soybean and SBM quality by origin using a meta‐analysis approach, and 2) analyze collected crude degummed soybean oil samples that originate from the US, Brazil and Argentina for key quality attributes. Soybeans from Brazil have higher levels of protein (P < 0.05) than US soybeans, but US soybeans have lower heat damage (P < 0.05) and total damage (P < 0.05) than soybeans from Brazil. US and Brazil SBM have higher crude protein (CP) (P < 0.05) than SBM from Argentina. At equal CP content, US SBM had less fiber (P < 0.0001), more sucrose (P < 0.0001) and lysine (P < 0.0001) and better protein quality than South American SBMs. Methionine, threonine, and cysteine levels were similar in soybean protein from US and Argentina and higher than that in soybean protein from Brazil. Crude degummed soybean oil from Brazil had more (P < 0.05) free fatty acids, neutral oil loss, phosphorus, calcium and magnesium than crude degummed soybean oil from the US or Argentina. Our analysis suggests that environmental conditions under which soybeans are grown, stored, and handled can have a large impact on chemical composition and nutrient quality of soybean meal and soybean oil. 

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2. Soybean-derived blue photoluminescent carbon dots

   https://doi.org/10.3762/bjnano.11.48  

   Wang, Shanshan; Sun, Wei; Yang, Dong-sheng; Yang, Fuqian (January 2020, Beilstein Journal of Nanotechnology)

   Biomass-derived carbon dots (CDs) are biocompatible and have potential for a variety of applications, including bioimaging and biosensing. In this work, we use ground soybean residuals to synthesize carbon nanoparticles by hydrothermal carbonization (HTC), annealing at high temperature, and laser ablation (LA) in a NH 4 OH solution. The carbon nanoparticles synthesized with the HTC process (HTC-CDs) exhibit photoluminescent characteristics with strong blue emission. The annealing of the HTC-processed carbon particles in the range of 250 to 850 °C causes a loss of the photoluminescent characteristics of the CDs without any significant change in the microstructure (amorphous structure) of the carbon particles. The LA processing of the annealed HTC-processed carbon particles introduces nitrogen-containing surface-functional groups and leads to the recovery of the photoluminescent features that are different from those of the HTC-CDs and dependent on the fraction of nitrogen in the surface-functional groups. The photoluminescence of both the HTC-CDs and LA-CDs is largely due to the presence of N-containing surface-functional groups. The quantum yield of the LA-CDs is more constant than that of the HTC-CDs under continuous UV excitation and does not exhibit a significant reduction after 150 min of excitation. The methods used in this work provide a simple and green strategy to introduce N-surface-functional groups to carbon nanoparticles made from biomass and biowaste and to produce stable photoluminescent CDs with excellent water-wettability. 

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3. Coordinated Systemic Stomatal Responses in Soybean

   https://doi.org/10.1104/pp.20.00511  

   Zandalinas, Sara I.; Cohen, Itay Hamus; Fritschi, Felix B.; Mittler, Ron (June 2020, Plant Physiology)
4. Incremental Inverse Design of Desired Soybean Phenotypes

   https://doi.org/10.1021/acsomega.4c01704  

   Zavorskas, Joseph; Edwards, Harley; Marten, Mark_R; Harris, Steven; Srivastava, Ranjan (September 2024, ACS Omega)
5. Characterization of the Spatial and Temporal Expression of Two Soybean miRNAs Identifies SCL6 as a Novel Regulator of Soybean Nodulation

   https://doi.org/10.3389/fpls.2019.00475  

   Hossain, Md Shakhawat; Hoang, Nhung T.; Yan, Zhe; Tóth, Katalin; Meyers, Blake C.; Stacey, Gary (April 2019, Frontiers in Plant Science)