diff --git a/backend/src/main/java/com/example/todoapp/controller/StocksController.java b/backend/src/main/java/com/example/todoapp/controller/StocksController.java
index 2631bc1..8ff6691 100644
--- a/backend/src/main/java/com/example/todoapp/controller/StocksController.java
+++ b/backend/src/main/java/com/example/todoapp/controller/StocksController.java
@@ -1,16 +1,22 @@
 package com.example.todoapp.controller;
 
+import com.example.todoapp.dto.DeleteStockRequest;
 import com.example.todoapp.dto.ResponseStockDTO;
 import com.example.todoapp.dto.StockDTO;
 import com.example.todoapp.model.Stocks;
 import com.example.todoapp.service.StocksService;
 import jakarta.validation.Valid;
+import lombok.Data;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.core.Authentication;
 import org.springframework.web.bind.annotation.*;
+import lombok.Data;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.stream.Collectors;
 
 /**
@@ -81,27 +87,33 @@ public class StocksController {
      * @param stockDetails 更新内容
      * @return 更新された在庫
      */
-    @PutMapping("/{id}")
-    public ResponseEntity<StockDTO> updateStock(
+    @PutMapping("/update")
+    public ResponseEntity<Map<String, Object>> updateStock(
             Authentication authentication,
-            @PathVariable("id") Long stockId,
             @Valid @RequestBody Stocks stockDetails) {
-        Stocks updatedStock = stockService.updateStocks(authentication.getName(), stockId, stockDetails);
-        return ResponseEntity.ok(StockDTO.fromEntity(updatedStock));
+        
+        stockService.updateStocks(authentication.getName(), stockDetails);
+
+        Map<String, Object> response = new HashMap<>();
+        response.put("result", true);
+        return ResponseEntity.ok(response);
     }
 
     /**
      * 指定されたIDの在庫を削除する
      *
      * @param authentication 認証情報
-     * @param taskId 削除する在庫のID
-     * @return 空のレスポンス
+     * @param stockInfo 削除する在庫情報（stockIdをキーに持つ）
+     * @return レスポンス
      */
-    @DeleteMapping("/{id}")
-    public ResponseEntity<?> deleteStock(
+    @DeleteMapping("/delete")
+    public ResponseEntity<Map<String, Object>> deleteStock(
             Authentication authentication,
-            @PathVariable("id") Long stockId) {
-        stockService.deleteStock(authentication.getName(), stockId);
-        return ResponseEntity.ok().build();
+            @Valid @RequestBody DeleteStockRequest request) {
+        stockService.deleteStock(authentication.getName(), request.getStockId());
+        
+        Map<String, Object> response = new HashMap<>();
+        response.put("result", true);
+        return ResponseEntity.ok(response);
     }
 }
\ No newline at end of file
diff --git a/backend/src/main/java/com/example/todoapp/dto/DeleteStockRequest.java b/backend/src/main/java/com/example/todoapp/dto/DeleteStockRequest.java
new file mode 100644
index 0000000..8beb478
--- /dev/null
+++ b/backend/src/main/java/com/example/todoapp/dto/DeleteStockRequest.java
@@ -0,0 +1,15 @@
+package com.example.todoapp.dto;
+import lombok.Data;
+
+/**
+ * 在庫削除のリクエストオブジェクト（DTO）
+ * <p>
+ * このクラスはクライアントとサーバー間で在庫情報をやり取りするために使用されます。
+ * エンティティとは異なり、必要な情報のみを含み、関連エンティティへの参照ではなくIDのみを保持します。
+ * </p>
+ */
+
+@Data
+public class DeleteStockRequest {
+    private Long stockId;
+}
\ No newline at end of file
diff --git a/backend/src/main/java/com/example/todoapp/repository/StuffsRepository.java b/backend/src/main/java/com/example/todoapp/repository/StuffsRepository.java
index f2fb344..065fe18 100644
--- a/backend/src/main/java/com/example/todoapp/repository/StuffsRepository.java
+++ b/backend/src/main/java/com/example/todoapp/repository/StuffsRepository.java
@@ -39,6 +39,6 @@ public interface StuffsRepository extends JpaRepository<Stuffs, Long> {
      * @param category カテゴリ名
      * @return 指定されたカテゴリに属する材料のリスト
      */
-    List<Stuffs> findByCategory(String category);
+    List<Stuffs> findByCategoryOrderByStuffNameAsc(String category);
 
 }
\ No newline at end of file
diff --git a/backend/src/main/java/com/example/todoapp/service/StocksService.java b/backend/src/main/java/com/example/todoapp/service/StocksService.java
index e793f1f..68d6eaf 100644
--- a/backend/src/main/java/com/example/todoapp/service/StocksService.java
+++ b/backend/src/main/java/com/example/todoapp/service/StocksService.java
@@ -75,8 +75,8 @@ public class StocksService {
      * @param stockDetails 編集内容(新しい情報)
      * @return 編集された在庫エンティティ
      */
-    public Stocks updateStocks(String username, Long stockId, Stocks stockDetails) {
-        Stocks stock = getStockById(username, stockId);
+    public Stocks updateStocks(String username, Stocks stockDetails) {
+        Stocks stock = getStockById(username, stockDetails.getStockId());
         stock.setAmount(stockDetails.getAmount());
         stock.setPrice(stockDetails.getPrice());
         stock.setLastUpdate(stockDetails.getLastUpdate());
diff --git a/backend/src/main/java/com/example/todoapp/service/StuffsService.java b/backend/src/main/java/com/example/todoapp/service/StuffsService.java
index 18b3924..4c8426f 100644
--- a/backend/src/main/java/com/example/todoapp/service/StuffsService.java
+++ b/backend/src/main/java/com/example/todoapp/service/StuffsService.java
@@ -34,6 +34,6 @@ public class StuffsService {
      * @return 指定されたカテゴリに属する材料のリスト
      */
     public List<Stuffs> getAllStuffsByCategory(String category) {
-        return stuffsRepository.findByCategory(category);
+        return stuffsRepository.findByCategoryOrderByStuffNameAsc(category);
     }
 }
diff --git a/frontend/src/services/api.ts b/frontend/src/services/api.ts
index 7146117..07c122a 100644
--- a/frontend/src/services/api.ts
+++ b/frontend/src/services/api.ts
@@ -280,13 +280,15 @@ export const stockApi = {
     });
 
     console.log("API レスポンスステータス:", response.status);
-    console.log("API レスポンス本文:", await response.text());
+    // console.log("API レスポンス本文:", await response.text());
 
     if (!response.ok) {
       throw new Error(STOCK_ERRORS.DELETE_FAILED);
     }
 
-    return response.json()
+    const response_json = response.json()
+    console.log('Delete response:', response_json)
+    return response_json
 
     // return {
     //   "result": true