000 03068nam a2200313 u 4500
001 2914
003 IFAC
005 20260129200034.0
008 yymmdds2019 bl 000 0 por d
035 _a2914
040 _aBR-IFAC
041 _apor
942 _cMONEX
090 _a641.371
_bS111i
260 _c2019
300 _a43 f.
_bil.
100 1 _aSá, Maria Aparecida Cavalcante de
502 _aMonografia (graduação) - Instituto Federal de Educação, Ciência e Tecnologia do Acre, Curso de Bacharelado em Zootecnia, 2019
520 _aAbstract: Non-acid unstable milk (LINA) is defined as the product that presents milk casein instability to the alcohol test, promoting the formation of lumps and indicating false acidity. The LINA is a serious problem, because the false positive, leads to condemnation of the milk, promoting waste, affecting the industry and mainly the rural producer. The inability to use this product is mainly characterized by not resisting high temperatures. The objective of this work was to verify the incidence of non - acidic milk (LINA) in the municipality of Sena Madureira - AC and to evaluate its physicochemical composition. Samples of milk delivered to dairy of the municipality of 19 milk production units (UPL) were collected during 20 days in August and September of 2018. The values of fat, protein and lactose were determined from the samples collected. The stability of the milk was evaluated by the alcohol test (v / v), while the acidity was measured by titration, obtaining the acidity in degrees Dornic (ºD), and the samples were classified according to their acidity in: alkaline (<14 ° D), normal (from 14 to 18 ° D) and acidic (> 18 ° D). Samples that presented normal acidity and positivity to the 72% (v/v) alcohol test were considered as LINA milk. The results were submitted to analysis of variance, to compare the means of the components of the LINA milk and the normal milk. Most of the analyzed samples (69%) were characterized as normal milk 23% of the samples were LINA, 6% acidic milk and 2% basic milk. It found a significant difference in the chemical composition between LINA and normal milk only for fat content, 4.48% and 3.75%, respectively. It is concluded, therefore, that there is incidence of LINA in the municipality of Sena Madureira - AC, thus, more studies are needed to deepen the subject in order to identify the origin of the problem and thus seek a solution to avoid the damages caused by discarding milk for both industry and producers.
710 1 _aInstituto Federal de Educação, Ciência e Tecnologia do Acre
245 1 _aIncidência de leite instável não ácido (LINA) em Sena Madureira-AC
_c/ Maria Aparecida Cavalcante de Sá
_h[manuscrito]
082 0 _a641.371
500 _aOrientadora Luciana da Conceição Castello Branco
650 0 4 _aLeite instável não ácido (LINA)
650 0 4 _aSena Madureira
_xIncidência de LINA
650 0 4 _aTeste de álcool
650 0 4 _aProteína
700 1 _aCastelo Branco, Luciana da Conceição
_eOrient.
999 _c30718
_d30718