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Finger citron pomace is a cheap and renewable by-product of the citrus processing industry, representing up to 60% of the fruit biomass. In this study, a pectinase-based and ultrasonic-assisted method was firstly used to extract pectic oligosaccharides (POS) from finger citron pomace. Using the orthogonal experiment design (OED), the maximum conversion rate of up to 64.5% from pomace to POS was obtained under the extraction conditions of 0.25 mg mL pectinase and 50 mg mL pectin at 45 °C and pH 4.5 for 2 h. The extracted POS was then fractionated and purified to homogeneous oligosaccharides (FCPOS-1) with a molecular weight of 2.15 kDa, and the analyses of monosaccharide composition, FTIR, NMR and ESI-MS indicated that FCPOS-1 consisted of GalA and a small amount of mannose, galactose and arabinose. Multiple antioxidant activity assays revealed that FCPOS-1 possessed remarkable antioxidant properties, especially scavenging activity against DPPH radicals up to 94.07%. FCPOS-1 has the potential to be an effective natural antioxidant for applications in the food and pharmaceutical industries.
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http://dx.doi.org/10.1039/d1fo01576a | DOI Listing |
Despite the f(980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( ) meson, a tetraquark ( ) exotic state, a kaon-antikaon ( ) molecule, or a quark-antiquark-gluon ( ) hybrid. This paper reports strong evidence that the f(980) state is an ordinary meson, inferred from the scaling of elliptic anisotropies (v) with the number of constituent quarks (n), as empirically established using conventional hadrons in relativistic heavy ion collisions. The f(980) state is reconstructed via its dominant decay channel f(980) → ππ, in proton-lead collisions recorded by the CMS experiment at the LHC, and its v is measured as a function of transverse momentum (p).
View Article and Find Full Text PDFPhys Rev Lett
August 2025
University of Wisconsin-Madison, Madison, Wisconsin, USA.
The first search for a heavy neutral spin-1 gauge boson (Z^{'}) with nonuniversal fermion couplings produced via vector boson fusion processes and decaying to tau leptons or W bosons is presented. The analysis is performed using LHC data at sqrt[s]=13 TeV, collected from 2016 to 2018 with the CMS experiment and corresponding to an integrated luminosity of 138 fb^{-1}. The data are consistent with the standard model predictions.
View Article and Find Full Text PDFFoods
July 2025
Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Health and Food Sciences Precinct, Coopers Plains, Brisbane, QLD 4108, Australia.
Citrus fruit are well-known for their characteristic flavour and nutritional value. Global citrus production has increased by 528% between 1961 and 2021, and in Australia, citrus is the most exported fresh fruit product by volume. There are six described species endemic to Australia: (Australian finger lime), (round lime), (Mount White lime), (desert lime), (Humpty Doo lime), and (Russell River lime).
View Article and Find Full Text PDFFront Plant Sci
June 2025
Citrus Research and Education Center, University of Florida, Lake Alfred, FL, United States.
Citrus greening disease, or Huanglongbing (HLB), is the most destructive disease affecting citrus crops worldwide. All commercially cultivated citrus varieties are highly susceptible to HLB, and currently, no effective treatments exist. Several Australian lime species have demonstrated significant HLB tolerance, making them promising candidates for developing HLB-tolerant rootstocks and scions through conventional breeding and biotechnological approaches.
View Article and Find Full Text PDFJ Agric Food Chem
July 2025
Vector-borne Virus Research Center, State Key Laboratory of Agricultural and Forestry Biosecurity, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Huanglongbing (HLB) is a destructive disease that threatens the citrus industry worldwide. It is associated with " Liberibacter asiaticus" (Las) and vectored by , known as the Asian citrus psyllid (ACP). Australian finger lime (), a promising candidate for HLB tolerance, was examined in response to Las-infected ACPs through comprehensive transcriptomic profiling to identify key antimicrobial peptides (AMPs) and immune-related pathways.
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