c# - Compare sublist of a list for objects that change, in Linq -

I have a list of objects in which there is a sybbys of the string and these structures can change between the days and I'm looking to compare them to see if there was any change.

  public class recipe {public string id {get; Set; } Public string name {get; Set; } Public listing & lt; String & gt; Content {Received; Set; }}   
  ID  field is similar to the list's editions and  content  only  wire .  
  list & amp; Lt; Method & gt; List1 = GetRecipes ("2013-06-20"); & Lt; Recipe & gt; List2 = GetRecipes ("2013-06-21");   
 I am trying to find all the  cookie  which is the component change between days i  list2  in  List 2  but not  list1 , but being able to come up with a Linq statement to find the  cookie  for something like this  
  var newRecipes = list1.Where (x =>! List2.Any (x1 => x1.id == x.id)). Union (list2.Where (x =>! List 1. some (x1 => x1.id == x.id)));   
 But, I do not know yet how the  cookie  is selected,  component  between the list Change.  
  var revised reset = list 1. Where (x => List2.Any (x1 = & gt; x1.id == x.id & x1.iGuentants.SuvenesAqualle (X.Engident)). Union (list2.Where (x =>! List1.Any (x1 => x1.id == x.id & amp; x1.Ingedients.SequenceEqual (x.Ingedients))));   
 How can I get a list of objects that have been converted into string manipulations?   
 
 
 This code will add you to each non-matching recipients of the same ID. You have to sort the content list for the order task.  
  var = Older in GetRecipes ("2013-06-20") to join new in GetRecipes ("2013-06-21") on the old. ID is equal to new. Id where! old. material. Select white aquals (new content) New {old, new};