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  <controlfield tag="001">IA_El objetivo de este trabajo fue evaluar las caracter&#xED;sticas texturales y sensoriales de un yogurt bajo en grasa utilizando como sustitutos almidones modificados qu&#xED;micamente en comparaci&#xF3;n con el yogur completo en grasa l&#xE1;ctea. Se elaboraron tres yogures bajos en grasa reconstituidos con leche entera y descremada en polvo (12.5 g de grasa l&#xE1;ctea/L): adicionados con almid&#xF3;n nativo de ma&#xED;z, almid&#xF3;n modificado de ma&#xED;z ceroso o almid&#xF3;n modificado de tapioca comparados con un control (25 g de grasa l&#xE1;ctea/L) sin almid&#xF3;n. Se determin&#xF3; la composici&#xF3;n qu&#xED;mica, sin&#xE9;resis, microestructura. Se evaluaron caracter&#xED;sticas texturales y sensoriales. Los almidones de ma&#xED;z y tapioca qu&#xED;micamente modificados originaron un yogurt con los valores m&#xE1;s altos de fracturabilidad, dureza, cohesividad y adhesividad. El an&#xE1;lisis sensorial descriptivo revel&#xF3; que los almidones modificados qu&#xED;micamente contribuyeron positivamente en las caracter&#xED;sticas sensoriales del yogurt (cremosidad, viscosidad, grasosidad y acidez). La microestructura de YAMT y YAMM mostraron una red de prote&#xED;nas m&#xE1;s compacta y continua a diferencia de la microestructura de YC, el cual present&#xF3; una red d&#xE9;bil. Por lo tanto, la adici&#xF3;n de almidones modificados qu&#xED;micamente como sustitutos de grasa en la elaboraci&#xF3;n de yogurt, permite mejorar las caracter&#xED;sticas texturales y sensoriales del yogurt y de esta manera obtener un producto funcional con menor contenido cal&#xF3;rico.   The growing demand for functional foods, the food industry requires is constantly looking for ingredients that can be added to food. In particular, the chemically modified starch, which also qualifies as resistant starch (AR) has been of great interest both for its potential health benefits similar to the fiber as its functional properties (Fuentes- Zaragoza, 2011). The aim of this study was to evaluate the textural, instrumental and sensory characteristics of a reduced-fat yogurt using modified starches as a substitute and compared with a full-fat control yogurt. Three reduced-fat stirred yogurts were prepared from reconstituted whole and skim milk powder (12.5 g of milk fat) added with native maize and modified waxy maize or modified tapioca starches compared to a control (25 g of milk fat) without starch. Chemical composition was determined, syneresis, microstructure, textural and sensory characteristics were evaluated. The chemically modified waxy maize and cassava starches originated a yogurt with the highest values of fracturability, hardness, cohesiveness and adhesiveness. The descriptive sensory analysis revealed that modified starches contributed positively to the sensory characteristics of yogurt (creaminess, stickiness, fattiness, acidity). Microstructure of YATM and YAMM showed a network more compact and continuous unlike YC microstructure, which was a weak proteins network .Therefore, the addition of modified starches as fat replacer in the preparation of yogurt can improve the textural and sensory characteristics yogurts, and thereby obtain a functional product with a lower caloric content.</controlfield>
  <controlfield tag="002">INCORPORACION DE ALMIDONES MODIFICADOS COMO SUSTIT</controlfield>
  <controlfield tag="008">220117s    xx            000 0 und d</controlfield>
  <datafield tag="010" ind1=" " ind2=" ">
    <subfield code="a">185598</subfield>
  </datafield>
  <datafield tag="530" ind1=" " ind2=" ">
    <subfield code="a">Disponible en PDF</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">Almid&#xF3;n resistente  </subfield>
    <subfield code="9">159691</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2="0">
    <subfield code="a">Dairy industry</subfield>
    <subfield code="9">147068</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">Industria lechera  </subfield>
    <subfield code="9">57819</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">Resistant starch  </subfield>
    <subfield code="9">159692</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">Yogur  </subfield>
    <subfield code="9">147092</subfield>
  </datafield>
  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">Yogurt  </subfield>
    <subfield code="9">123161</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Lobato Calleros, Consuelo, asesor</subfield>
    <subfield code="9">163738</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Ram&#xED;rez Santiago, C&#xE9;sar, dir. </subfield>
    <subfield code="9">150568</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="a">Sandoval Castilla, Ofelia, asesor </subfield>
    <subfield code="9">163657</subfield>
  </datafield>
  <datafield tag="942" ind1=" " ind2=" ">
    <subfield code="c">TESIS M46 2014</subfield>
  </datafield>
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    <subfield code="c">185598</subfield>
    <subfield code="d">185598</subfield>
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