Effects of dietary rumen undegradable protein:rumen degradable protein ratio on nitrogen metabolism in Hanwoo steers.

Objective: We investigated the effects of dietary rumen undegradable protein (RUP):rumen degradable protein (RDP) ratio on growth performance, nitrogen (N) metabolism, and rumen and blood parameters in Hanwoo (Korean cattle) steers.

Methods: Eight Hanwoo steers (average body weight, 393 kg) were allocated to two groups and fed with a high RUP:RDP ratio (46.9:53.

Regiodivergent Alkylation of Pyridines: Alkyllithium Clusters Direct Chemical Reactivity.

Regiodivergent C-C bond-forming reactions are a powerful tool for constructing diverse molecular architectures from common precursors. While transition metal catalysis has dominated regioselective transformations, achieving similar precision with transition-metal-free methods remains an unmet challenge, particularly when using identical starting materials. In this work, we report a transition-metal-free, regiodivergent direct alkylation of electronically unbiased pyridines using 1,1-diborylalkanes as the sole alkylating agent.

Integrative transcriptogenomic analyses reveal a regulatory network of rice eating and cooking quality and unveil a role of alpha-globulin in modulating starch and sucrose metabolism.

Rice eating and cooking quality (ECQ) is significantly influenced by the physicochemical properties of its starch. This study integrates whole-genome resequencing, transcriptomic data, and phenotypic analysis to identify the genetic factors that regulate transcript expression levels and contribute to phenotypic variation in rice ECQ traits. A TWAS (transcriptome-wide association study) identified 285 transcripts linked to six ECQ traits.

Physical modification of corn and potato starches using soaking, freezing, and drying.

Effects of continuous soaking, freezing, and drying on physicochemical properties of corn and potato starches were investigated to prove potentials of sequential physical modification method. High temperature soaking showed the higher swelling power than low temperature soaking in both starches right after soaking. Freezing did not significantly rearrange the molecular structure of both starches.

Physicochemical properties of hydrolysate and residues from HCl-hydrolyzed potato pulp.

Unlabelled: Potato pulp, a by-product of potato starch processing, is rich in carbohydrates like starch, pectin, and cellulose that form a complex matrix. The underutilization of potato pulp leads to environmental pollution and economic costs. In this study, potato pulp was treated with 2 N hydrochloric acid (HCl) at 50 °C for varying durations, and the physicochemical properties of the resulting hydrolysates and insoluble residues were examined.