02866naa a2200301 a 450000100080000000500110000800800410001902200140006002400390007410000150011324501280012826000090025650008760026552011030114165300160224465300220226065300110228265300240229365300140231765300270233165300110235870000140236970000160238370000170239970000140241670000140243077301200244410622092021-06-30       2021    bl uuuu     u00u1 u    #d  a0304-42387 a10.1016/j.scienta.2021.1102622DOI1 aMIGUES, I.  a1H NMR metabolic profiles as selection tools of new mandarin cultivars based on fruit acceptability.h[electronic resource]  c2021  aArticle history: Received 26 June 2020; Received in revised form 11 March 2021; Accepted 3 May 2021; Available online 21 May 2021. The authors wish to thank Andrés López for his help with the NMR measurements and useful discussions, Cecilia Rodriguez Cereaolo for her assistance in sample preparation, and Joanna Lado for sampling the mandarins and supervising the routine physicochemical studies. Financial support from INIA through the L4 funding program, the Agencia Nacional de Investigación e Innovación (award POS_NAC_2017_1_140316 ), and the Programa de Desarrollo de las Ciencias Básicas is also acknowledged. Corresponding author: Heinzen, H.; Laboratorio de Farmacognosia y Productos Naturales, Departamento de Química Orgánica, Facultad de Química, Universidad de la República, Avenida General Flores 2124, Montevideo, Uruguay; email:heinzen@fq.edu.uy  aABSTRACT - Aqueous pulp extracts of 8 mandarin cultivars produced in Uruguay, including four commercial lines and four of their crosslinks under development, were characterized through untargeted 1H NMR-based metabolomics. The spectral features identified through this approach proved the uniqueness of each mandarin metabolome. The stability of the chemical make-up through different harvests, the evolution of the metabolome towards full fruit maturity, and the character transference from parents to their hybrids were evaluated using multivariate analysis, with the 1H NMR signals of sugars and tricarboxylic acids being the most relevant ones. The relationship between sugar sweetness power and citric acid content found in each variety correlated well with independent consumer preference tests of the mandarin cultivars under investigation. Since it is based on readily measurable chemical parameters, this chemometric model could be employed to reduce the number of samples presented to sensory panels during the early and time-consuming selection stages of new mandarin cultivars.  © 2021  aCitric acid  aCitrus reticulata  aFlavor  aFruit acceptability  aMandarins  aNMR-based metabolomics  aSugars1 aHODOS, N.1 aMOLTINI, A.1 aGÁMBARO, A.1 aRIVAS, F.1 aMOYNA, G.  tScientia Horticulturae, 2021, Volume 287, Article number 110262. Doi: https://doi.org/10.1016/j.scienta.2021.110262